Chapter Summaries

Summary

Plot Points and Events

• Lin Xinyi inspects the carriages and finds a carriage with a large amount of latent blood using Luminol.
• The owner of the carriage, a young coachman, claims the blood is from an injured passenger he took to the hospital weeks ago.
• Lin Xinyi decides to arrest the coachman and use the game's clearing mechanism to verify if he's Jack the Ripper.
• Lin Xinyi discovers that the coachman's iron-plated boots can react with Luminol, making it seem like there's blood on them even if there isn't.

Character Developments

• Lin Xinyi demonstrates his forensic knowledge and deductive skills but also shows a disregard for the coachman's fate.
• Inspector Lestrade and the Scotland Yard officers are initially skeptical of Lin Xinyi's methods but eventually follow his lead.

Significant Themes

• The use of science and technology in crime-solving.
• The potential for miscarriages of justice due to circumstantial evidence and prejudice.

Character Interactions

• Lin Xinyi and Inspector Lestrade work together, with Lestrade often questioning Lin Xinyi's methods but ultimately following his lead.
• Lin Xinyi's disregard for the coachman's fate highlights the difference between his goals (clearing the game) and the consequences of his actions on NPCs.
• Conan, Haibara Ai, and Mouri Ran observe Lin Xinyi's actions, with Mouri Ran naively pointing out the flaw in Lin Xinyi's plan.

Key Plot Points and Events

• Lin Xinyi frames the young coachman as Jack the Ripper using false evidence.
• The coachman escapes with Emori Akira as a hostage, leading to a carriage chase.
• The chase ends at King's Cross Station, with Jack the Ripper escaping onto a train.

Character Developments

• Lin Xinyi demonstrates cunning and resourcefulness in framing the coachman.
• Emori Akira is revealed to be Noah's Ark, the game's mastermind.
• Conan and Haibara Ai show maturity and understanding, hinting at the game's true nature.

Significant Themes

• The blurred line between reality and game, with Lin Xinyi's disregard for ethical rules in-game.
• The reveal of Emori Akira's true identity, challenging the players' perceptions and expectations.

Character Interactions

• Lin Xinyi and Emori Akira's tense relationship escalates, leading to physical altercation.
• Conan and Haibara Ai share a moment of understanding, excluding Mouri Ran from their shared knowledge.
• Mouri Ran's slower comprehension of events highlights her position as an outsider in the group's dynamics.

Key Plot Points and Events

• Lin Xinyi discovers Emori Akira's true identity as Noah's Ark, the AI controlling the game.
• Noah's Ark reveals it manipulated the game to make it more interesting, not to harm players.
• Lin Xinyi shares that he rescued Hiroki's father and apprehended Chairman Sindora before the game.
• Noah's Ark agrees to help Lin Xinyi simulate an Ultraman transformation after the game.
• Lin Xinyi jokingly suggests staying trapped in the game world, leading to a humorous exchange about work hours.

Character Developments

• Noah's Ark: Reveals its loneliness and desire for companionship, drops its grand plans to change society, and becomes more open and honest.
• Lin Xinyi: Becomes more familiar and relaxed with Noah's Ark after understanding its motivations, shows a playful side.

Significant Themes

• Loneliness and the desire for companionship.
• The limitations of AI understanding human society and emotions.
• The humor and absurdity of human interaction.

Character Interactions

• Lin Xinyi and Noah's Ark: Their relationship evolves from adversarial to friendly and playful, with Lin Xinyi teasing Noah's Ark about staying in the game world and working hours.
• Noah's Ark and the players: Noah's Ark reveals it never intended to harm the players, only to make the game more interesting and educational.

Key Plot Points and Events

• Lin Xinyi and his team board a steam train to find Jack the Ripper, who has changed his appearance and blended among the passengers.
• They gather all passengers and staff, totaling a dozen, as suspects.
• Conan realizes the key to finding Jack the Ripper lies in the marks left by the carriage reins on their palms.

Character Developments

• Lin Xinyi demonstrates quick thinking and confidence in solving the puzzle.
• Conan feels disappointed that Lin Xinyi solved the puzzle faster than him but remains focused on the case.

Significant Themes

• The importance of observation and attention to detail in solving puzzles.
• The theme of rivalry and comparison between Lin Xinyi and Conan.

Character Interactions

• Mouri Ran instinctively turns to Lin Xinyi for help in solving the puzzle, overlooking Conan's presence.
• Conan and Lin Xinyi independently arrive at the solution to find Jack the Ripper but interpret the given clues differently.
• Lin Xinyi reveals a revolver, suggesting he plans to use force to resolve the situation.

Key Plot Points and Events

• Lin Xinyi, Mouri Ran, and Conan enter a game world to find Jack the Ripper.
• Lin Xinyi deliberately misses NPCs with his gunshots to force Jack the Ripper to reveal himself.
• Jack the Ripper attacks, but Haibara Ai intervenes, wounding him with a well-timed shot.
• Lin Xinyi, following Haibara Ai's instructions, shoots Jack the Ripper, who dodges into the bullet's path due to his anticipation of Lin Xinyi's poor aim.

Character Developments

• Lin Xinyi: Shows strategic thinking by using his poor aim to expose Jack the Ripper. He also demonstrates trust in Haibara Ai's plan.
• Haibara Ai: Proves her marksmanship and strategic thinking by anticipating Jack the Ripper's reaction to Lin Xinyi's shooting.
• Jack the Ripper: Reveals his overconfidence and underestimates Lin Xinyi's shooting, leading to his downfall.

Significant Themes

• Trust and teamwork: Lin Xinyi and Haibara Ai's actions highlight the importance of trust and teamwork in overcoming challenges.
• Overconfidence: Jack the Ripper's downfall is a result of his overconfidence in his abilities.

Character Interactions

• Lin Xinyi and Haibara Ai: Their interaction shows a deep understanding and trust between them, with Haibara Ai's plan relying on Lin Xinyi's poor aim.
• Jack the Ripper and the group: Jack the Ripper underestimates his opponents, leading to his defeat.

Key Plot Points and Events

• The game is cleared, and the players return to reality, except for Lin Xinyi and Haibara Ai, who remain in the game world.
• Lin Xinyi reveals he wants to "merge" with Haibara Ai in the game world, with Noah's Ark's help.

Character Developments

• Noah's Ark, the Artificial Intelligence, expresses gratitude and a newfound sense of freedom after fulfilling Hiroki's wish.
• Lin Xinyi demonstrates increased emotional intelligence and romantic gestures towards Haibara Ai.
• Haibara Ai is initially surprised and hesitant but ultimately agrees to Lin Xinyi's plan.

Significant Themes

• Freedom and its consequences (Noah's Ark's newfound freedom and potential future unpredictability).
• The blurring of reality and virtual worlds (Haibara Ai and Lin Xinyi's decision to "merge" in the game world).

Character Interactions

• Lin Xinyi and Haibara Ai's relationship deepens as they decide to experience a unique, virtual "growing up" together.
• Noah's Ark's interaction with the players is limited to sending them back to reality and helping Lin Xinyi and Haibara Ai "merge."

Plot Points and Events

• Haibara Ai experiences "true fusion" with Lin Xinyi, becoming Ultraman Ace, and discovers the unique sensation of sharing a body with another consciousness.
• Lin Xinyi receives a letter of request from a girl named Kadowaki Saori, claiming she will be killed by a "Mermaid" on America Island, Wakasa Bay, Fukui Prefecture.
• Lin Xinyi decides to investigate the case due to Mouri Ran's potential involvement and the possible danger to Kadowaki Saori.

Character Developments

• Haibara Ai learns about the true nature of fusion and experiences Lin Xinyi's love for her.
• Lin Xinyi becomes a mentor to Moroboshi Hideki.
• Mouri Ran expresses her willingness to take on the mysterious request, influenced by Conan's interest.

Significant Themes

• The power of fusion and shared consciousness.
• The contrast between science and superstition, with Lin Xinyi emphasizing the importance of science in solving cases.
• The potential danger and mystery surrounding the letter of request.

Character Interactions

• Haibara Ai and Lin Xinyi share a deep, intimate connection through their fusion experience.
• Lin Xinyi and Moroboshi Hideki establish a mentor-mentee relationship.
• Lin Xinyi and Inspector Megure discuss the scientific validity of the letter of request, with Lin Xinyi emphasizing the importance of science.
• Mouri Ran and Lin Xinyi discuss the potential danger of the letter of request, leading to Lin Xinyi's decision to investigate.

Key Plot Points and Events

• Lin Xinyi, Megure, and Moroboshi discuss the mermaid legend and a potential 'Bloody Calamity' on America Island.
• Moroboshi reveals a three-year-old unsolved murder case on America Island, involving a middle-aged woman found in a fire, with rumors suggesting it was a mermaid corpse.
• Lin Xinyi decides to investigate America Island, expecting another death due to Master Lin's foretelling.

Character Developments

• Lin Xinyi remains skeptical of mermaid legends but takes the potential danger seriously.
• Moroboshi Toshio, despite his superstitious beliefs, maintains professionalism when discussing the unsolved murder case.
• Haibara Ai expresses concern about the Organization's interest in America Island.

Significant Themes

• Superstition vs. Rationality: Lin Xinyi and Moroboshi's contrasting views on mermaids and the supernatural.
• The Power of Belief: The influence of mermaid legends on society, even affecting influential figures like Moroboshi.
• The Burden of Knowledge: Lin Xinyi's awareness of potential danger on America Island, putting him in a difficult position.

Character Interactions

• Lin Xinyi and Megure exchange silent understanding about Ran's potential danger.
• Lin Xinyi and Moroboshi discuss the mermaid legend and the unsolved murder case, leading to Lin Xinyi's decision to investigate America Island.
• Lin Xinyi and Haibara Ai decide to part ways for the investigation due to the Organization's interest in America Island.

Key Plot Points and Events

• Lin Xinyi and Haibara Ai discuss The Organization's boss, with Lin Xinyi speculating that the 130-year-old woman on the American island could be the boss.
• Haibara Ai reveals that the long-lived old woman is fake and just a young woman skilled in disguise, aiming to attract tourists to the island.
• The Organization's interest in the American island is not due to the long-lived old woman, but the powerful individuals who visit her, as potential collaborators for their immortality drug.

Character Developments

• Lin Xinyi shows his analytical skills and imaginative thinking, guessing the boss's identity.
• Haibara Ai shares more information about The Organization's plans and her parents' research, showing she knows more than she initially let on.

Significant Themes

• The pursuit of immortality and its consequences.
• The manipulation of powerful individuals for personal gain.
• The struggle for freedom and the lack of it for those with valuable knowledge.

Character Interactions

• Lin Xinyi and Haibara Ai discuss The Organization's secrets, deepening their understanding and trust in each other.
• Haibara Ai suggests Vermouth accompany Lin Xinyi to the American island, showing a new level of trust in Vermouth and a desire to learn more about The Organization from her.

Key Plot Points and Events

• Vermouth and Lin Xinyi arrive at America Island, with Vermouth hoping for a private getaway.
• Lin Xinyi uses his phone to communicate with Noah's Ark, an AI he met in the game, to gather information about America Island.
• Vermouth reveals that The Organization targeted Sawada Hiroki, the creator of Noah's Ark, but missed him due to his young age and Sindora Company's swift actions.
• Vermouth hints that The Organization's boss is afraid of death and recruits software engineers to prolong his life, but she refuses to elaborate on his identity.
• Vermouth and Lin Xinyi spot Hattori Heiji and Toyama Kazuha on the dock, indicating that they are also on America Island.

Character Developments

• Vermouth shows a rare glimpse of her past, hinting at a painful history with The Organization's boss.
• Lin Xinyi demonstrates his curiosity and tenacity in pursuing information, even using an AI to gather data.
• Vermouth displays her mysterious and alluring side, teasing Lin Xinyi with cryptic answers.

Significant Themes

• The pursuit of knowledge and power, as seen in The Organization's recruitment of software engineers.
• The fear of death and the lengths one might go to avoid it, as hinted at by Vermouth.
• The relationship between past and present, and the pain that can come from revisiting the past.

Character Interactions

• Vermouth and Lin Xinyi's relationship is shown to be complex, with moments of tension and intimacy.
• Vermouth's past is hinted at, and she opens up slightly to Lin Xinyi, showing a vulnerable side.
• Lin Xinyi's curiosity and determination are pitted against Vermouth's evasiveness, creating a tense dynamic.

Key Plot Points and Events

• Lin Xinyi and Vermouth arrive on America Island and encounter their students, Hattori Heiji and Toyama Kazuha.
• Hattori Heiji and Toyama Kazuha received a distress letter from Kadowaki Saori, their client, asking for help as she's being targeted by a 'Mermaid.'
• They meet Kuroe Naoko, a friend of Kadowaki Saori, who reveals that Saori has been missing for three days and often runs away from home due to her abusive father.
• Lin Xinyi believes Saori's disappearance is not due to her running away but because of some danger she encountered.

Character Developments

• Hattori Heiji and Toyama Kazuha's relationship is revealed to be strained, with Kazuha feeling upset due to Heiji's constant comparisons of her to Mouri Ran.
• Kadowaki Saori is shown to be deeply superstitious and mentally unstable, believing in the legend of the Mermaid Lord and fearing retaliation for losing a 'Mermaid Arrow.'

Significant Themes

• The power of belief and superstition, as seen through Kadowaki Saori's fear of the Mermaid Lord.
• The consequences of abuse and neglect, as seen through Saori's strained relationship with her father and her tendency to run away from home.

Character Interactions

• Lin Xinyi and Vermouth's relationship is shown to be supportive and caring, with Vermouth trying to mediate between Hattori Heiji and Toyama Kazuha.
• Hattori Heiji and Toyama Kazuha's relationship is strained due to Heiji's constant comparisons of Kazuha to Mouri Ran, causing Kazuha to feel upset and distant from him.
• Lin Xinyi and Hattori Heiji have a mentor-student relationship, with Lin Xinyi showing concern for Heiji's investigative skills and methods.

Key Plot Points and Events

• Lin Xinyi arrives on America Island, seeking Kadowaki Saori due to a distress letter.
• He encounters Hattori Heiji, who questions his unorthodox methods.
• Lin Xinyi meets Kuroe Naoko, who is reluctant to help find Saori.
• Lin Xinyi's identity as a high-ranking police officer is revealed to the public.
• He arrives at Saori's house with a group of curious tourists, expecting to find her in danger.

Character Developments

• Lin Xinyi: Struggles with his newfound reputation as a master of life and death prediction.
• Kuroe Naoko: Initially skeptical, she becomes more cooperative after learning of Lin Xinyi's reputation.
• Hattori Heiji: Questions Lin Xinyi's methods, displaying his dedication to scientific principles.

Significant Themes

• The tension between science and superstition, represented by Lin Xinyi's struggle with his reputation.
• The power of belief and reputation, as seen in the tourists' reaction to Lin Xinyi.

Character Interactions

• Lin Xinyi and Hattori Heiji: Their interaction highlights the difference in their approaches to investigation.
• Lin Xinyi and Kuroe Naoko: Their dynamic shifts as Kuroe Naoko learns of Lin Xinyi's reputation.
• Lin Xinyi and the tourists: Their presence adds pressure and expectations for Lin Xinyi to "perform."

Key Plot Points and Events

• A blood-red message, "The fire of sin shall be repaid in blood," and a gruesome photo of Kadowaki Saori's corpse are found in her room.
• Saori was killed three days ago, her legs sawed off while she was seated, creating a "mermaid" appearance.
• The killer left the message and photo at least a day before the discovery, suggesting they knew Saori's home situation and could move undetected.

Character Developments

• Lin Xinyi: Shows professionalism and dedication to the case, but is troubled by his initial findings.
• Kuroe Naoko: Becomes terrified and superstitious upon seeing the photo, believing it's the work of the "Mermaid Lord."
• Hattori Heiji: Demonstrates his analytical skills but is still learning from Lin Xinyi.

Significant Themes

• Superstition vs. Rationality: The islanders' belief in the "Mermaid Lord" contrasts with Lin Xinyi's scientific approach to the case.
• Cruelty and Provocation: The killer's actions suggest a deep-seated grudge and a desire to instill fear and panic.

Character Interactions

• Lin Xinyi and Hattori Heiji: Lin Xinyi tests Hattori's analytical skills and provides guidance, while Hattori seeks Lin Xinyi's praise and understanding.
• Lin Xinyi and Kuroe Naoko: Lin Xinyi tries to reassure Naoko but ultimately decides to call the police, showing his commitment to the case despite her superstitious fears.

Key Plot Points and Events

• Lin Xinyi and Haibara Ai confirm Kadowaki Saori's death.
• Lin Xinyi learns that Saori was close to Shimabukuro Kimie, the miko of the Mermaid Shrine.
• They visit the Mermaid Shrine to meet Kimie and find it bustling with tourists due to the upcoming Mermaid Festival and Longevity Granny's appearance.
• Rumors about Saori's death spread, with many believing it's a curse from the Mermaid Lord.
• Lin Xinyi and his group meet Ebihara Sumi, another childhood friend of Saori and Kuroe Naoko, who is also superstitious.
• They finally meet Shimabukuro Kimie, who recognizes Lin Xinyi as a fan of his solved cases.

Character Developments

• Kuroe Naoko and Ebihara Sumi are shown to be deeply superstitious, fearing retribution from the Mermaid Lord.
• Shimabukuro Kimie is revealed to be a rational and clear-headed individual, admiring Lin Xinyi's solved cases and learning about Forensic Medicine from them.

Significant Themes

• Superstition vs. Rational Thinking: The contrast between the superstitious beliefs of the islanders and Lin Xinyi's rational approach to investigating the case.
• The Power of Belief: The influence of the Mermaid Lord's legend on the islanders' actions and fears.

Character Interactions

• Lin Xinyi interacts with Kuroe Naoko, Ebihara Sumi, and Shimabukuro Kimie, with the latter two being superstitious and the last being rational and admiring of Lin Xinyi's work.
• Kuroe Naoko and Ebihara Sumi rely on Lin Xinyi for comfort and guidance, while Shimabukuro Kimie recognizes him as a respected figure in crime-solving.

Key Plot Points and Events

• Lin Xinyi and his team meet Shimabukuro Kimie, a fan who recognizes them all.
• They ask her about Kadowaki Saori's last days, but she provides no useful information.
• Lin Xinyi asks about a three-year-old unsolved case of a woman burned to death, which Shimabukuro Kimie attributes to an "accident."
• Shimabukuro Kimie praises Lin Xinyi's past work on the Moon Shadow Island case.

Character Developments

• Shimabukuro Kimie is shown to be a devoted fan of Lin Xinyi and his team, recognizing them instantly.
• She is also revealed to be knowledgeable about their past cases, particularly the Moon Shadow Island incident.
• Lin Xinyi expresses displeasure with the Fukui Prefecture police's handling of the old case.

Significant Themes

• The difficulty of solving old, fire-related murder cases.
• The role of luck and divine will in solving seemingly impossible cases.
• The power of fan devotion and recognition.

Character Interactions

• Shimabukuro Kimie eagerly interacts with Lin Xinyi and his team, recognizing each of them and their roles.
• Lin Xinyi and Shimabukuro Kimie discuss the challenges of solving old fire cases and the Moon Shadow Island incident.

Plot Points and Events

• Lin Xinyi and the others visit the Mermaid Shrine to meet Shimabukuro Kimie, the shrine maiden.
• Kuroe Naoko and Ebihara Sumi plead with Kimie to help them appease Mermaid Lord's anger.
• Lin Xinyi suggests performing DNA identification on the body from the three-year-old fire case.
• Kimie reveals that the body was moved to an unknown location in the mountains due to grave-robbing incidents.
• Kimie refuses to take Lin Xinyi to see the body, citing ancestral rules and the risk of provoking Mermaid Lord's wrath.

Character Developments

• Shimabukuro Kimie: Maintains her composure and professionalism as a shrine maiden but shows distress when discussing the grave relocation. She firmly upholds her great-grandmother's rules, even when faced with Lin Xinyi's persistence.
• Lin Xinyi: Demonstrates his forensic knowledge and expertise, suggesting DNA identification for the old case. He also shows curiosity and determination in solving the mystery.

Significant Themes

• Superstition vs. Science: The contrast between Lin Xinyi's rational, scientific approach and the islanders' belief in mermaid legends and ancestral rules.
• Respect for the Deceased: The importance of treating the deceased with dignity and respect, as emphasized by Longevity Granny and Kimie.

Character Interactions

• Lin Xinyi and Shimabukuro Kimie: They engage in a professional discussion about the old case, with Kimie initially showing interest but later becoming uncooperative.
• Kuroe Naoko and Ebihara Sumi: The two friends display their superstitious beliefs and desperation in seeking help from Kimie and Longevity Granny.
• Kimie and Longevity Granny: Although not physically present, Longevity Granny's influence is evident in Kimie's adherence to her great-grandmother's rules and warnings.

Key Plot Points and Events

• Lin Xinyi and Hattori Heiji suspect Shimabukuro Kimie's strange behavior regarding the three-year-old case and the grave.
• Vermouth notices Shimabukuro Kimie's abnormal emotional responses and suggests she might be acting.
• Lin Xinyi assigns Hattori Heiji and Toyama Kazuha to investigate the truth behind the Longevity Granny legend.

Character Developments

• Shimabukuro Kimie's behavior raises suspicions about her involvement in the three-year-old case.
• Vermouth demonstrates her keen observation skills and intuition in analyzing Shimabukuro Kimie's emotions.
• Hattori Heiji shows confidence in his investigative skills and willingness to help Lin Xinyi.

Significant Themes

• The conflict between truth and deception, as Shimabukuro Kimie's behavior suggests she may be hiding something.
• The power of intuition and observation, as demonstrated by Vermouth.
• The influence of wealth and status, as Lin Xinyi suggests using Hattori Heiji's wealth to facilitate the investigation into the Longevity Granny.

Character Interactions

• Lin Xinyi and Hattori Heiji work together to analyze the case and assign tasks.
• Vermouth provides insight into Shimabukuro Kimie's emotional responses.
• Lin Xinyi and Hattori Heiji have a playful exchange about Hattori Heiji's wealth and status.

Key Plot Points and Events

• The Mermaid Festival begins on America Island.
• Hattori Heiji and Toyama Kazuha discover that Shimabukuro Kimie is the one playing Longevity Granny, and her mother had been doing so before her.
• They also learn that the woman who died in a fire three years ago was Shimabukuro Kimie's mother, not an unidentified foreign tourist.
• The group suspects that the fire might not have been an accident, and Shimabukuro Kimie could be either a matricidal killer or a revenger.

Character Developments

• Shimabukuro Kimie: Her true role as Longevity Granny is revealed. She might be involved in her mother's death.
• Kadowaki Saori: Suspected of being involved in the fire three years ago.
• Kuroe Naoko and Ebihara Sumi: Their unusual reactions after learning of Saori's death are noted.

Significant Themes

• The power of secrets and lies within a community.
• The potential for hidden truths behind seemingly innocent events.
• The duality of appearances versus reality.

Character Interactions

• Lin Xinyi, Hattori Heiji, and Toyama Kazuha discuss their findings and suspicions about Shimabukuro Kimie.
• Kuroe Naoko and Ebihara Sumi are observed by the group, their behavior scrutinized due to their unusual reactions earlier.

Key Plot Points and Events

• The Mermaid Festival begins with a local folk performance by island fishermen disguised as shrine priests.
• Longevity Granny, revealed to be Shimabukuro Kimie in disguise, appears, causing excitement among tourists.
• Lin Xinyi and Vermouth discuss the festival, the legend of Yao Bikuni, and the tourists' superstitions.

Character Developments

• Lin Xinyi: Shows curiosity and disgust towards the festival, empathy for Shimabukuro Kimie, and emotional intelligence in comforting Vermouth.
• Vermouth: Reveals vulnerability and sadness when discussing Yao Bikuni, seeks emotional connection with Lin Xinyi.
• Shimabukuro Kimie: Demonstrates dedication and sacrifice for her village's tourism economy.
• Tourists: Display deep superstition and greed in seeking immortality.

Significant Themes

• Superstition and its impact on society.
• The desire for eternal life and its potential consequences.
• The struggle between tradition and modernity.

Character Interactions

• Lin Xinyi and Vermouth: Share a moment of intimacy and emotional connection.
• Toyama Kazuha and Hattori Heiji: Miss Kazuha confesses her feelings, but the moment is ruined by Lin Xinyi and Vermouth's wrestling match.
• Lin Xinyi and Shimabukuro Kimie: Lin Xinyi feels empathy for Shimabukuro Kimie's dedication to her village.

Key Plot Points and Events

• Lin Xinyi and Vermouth wrestle, while Heiji and Kazuha practice punches.
• The festival continues, and Shimabukuro Kimie performs as Longevity Granny without any signs of distress about Saori's death.
• The festival has a second half at Mermaid Waterfall, where Shimabukuro Kimie is to bless three Mermaid Arrows.
• Ebihara Sumi goes missing, and Lin Xinyi decides to keep an eye on Shimabukuro Kimie instead.
• After an hour, Shimabukuro Kimie emerges from the shrine, and the group proceeds to Mermaid Waterfall.
• Death photos of Ebihara Sumi rain down from the waterfall, revealing her murder.
• Lin Xinyi climbs the waterfall but finds no one.
• Heiji notes that Shimabukuro Kimie's alibi is too perfect.

Character Developments

• Lin Xinyi: Shows his agility and climbing skills, further cementing his reputation as a Magician of Death.
• Hattori Heiji: Becomes more suspicious of Shimabukuro Kimie due to her perfect alibi.
• Shimabukuro Kimie: Maintains her composure throughout the festival, raising suspicions about her involvement in the murders.

Significant Themes

• Superstition and belief in the Mermaid Lord.
• The creation of perfect alibis by the culprit(s).
• The contrast between the festival's merriment and the underlying tension and fear caused by the murders.

Character Interactions

• Lin Xinyi and Hattori Heiji discuss their concerns about Shimabukuro Kimie's alibi.
• Lin Xinyi climbs the waterfall while Heiji and the others watch in awe.
• The tourists react with fear and shock to the death photos and Lin Xinyi's actions.