Chapter Summaries

After Yuji Nikaido was found drowned and Reika Shifuku remained missing, Xu Yue and Conan investigated the trapped villa’s guests. The chapter ended with Xu Yue linking Nikaido and Reika’s disappearance to Yaeko’s death during a rescue at sea two years earlier.

• The search for Reika Shifuku turned up no trace of her, and the group found Yuji Nikaido drowned in the fountain.
• Xu Yue assessed Nikaido’s death as a murder, and the group discovered that the phones and Kogoro Mouri’s car had been disabled.
• Xu Yue warned that the murderer would strike again, so the guests searched the villa in pairs before regrouping.
• Alone with Xu Yue, Conan agreed that the murderer was likely among the people in the villa.
• Shoji Rokuda explained that Yaeko had drowned while rescuing Reika Shifuku and Nikaido during a storm two years earlier.
• Xu Yue suggested Yaeko’s death might not have been an accident, since Nikaido and Reika survived while Yaeko drowned.

Xu Yue and Conan uncovered Ryuichi’s murder of Reika Shifuku after the group found her drowned in a bathtub, and Ryuichi confessed. Xu Yue gained enough accumulated experience to exchange for a skill, but chose to keep saving it.

• When the lodge’s power went out and a window shattered, everyone rushed outside except Xu Yue, who stayed beside the sleeping Ran.
• Conan returned to find Xu Yue guarding Ran, then deduced that she had been drugged and that the air conditioners had been set to trip the power at 12:30.
• The group found Reika Shifuku drowned in a bathtub the next morning, and Xu Yue estimated that she had died about two hours earlier.
• After Conan and Xu Yue asked everyone to remove their coats, Xu Yue accused Ryuichi and pointed out the wet patches on his shirt sleeves as evidence.
• Ryuichi broke down and confessed, while Xu Yue decided to save his accumulated experience rather than exchange it for a skill.

Xu Yue learned that disabled people investigating Kudo Shinichi had been disappearing, then joined Professor Agasa and Kudo Shinichi’s parents in staging an abduction to test Conan. Conan mistook Kudo Yukiko’s disguise for a Black Organization plot and, after calling Xu Yue for help, was captured by her.

• Maya reported that two disabled people watching Kudo Shinichi’s home had vanished, and Xu Yue suspected the Black Organization was responsible.
• Professor Agasa told Xu Yue that Kudo Yusaku and Kudo Yukiko were returning to Japan, and Xu Yue agreed to help stage Conan’s abduction.
• Xu Yue met Kudo Yusaku and Kudo Yukiko at the airport and revealed the steps of their planned test.
• Kudo Yukiko disguised herself as Edogawa Fumiyo and convinced Ran and Kogoro Mouri that she was Conan’s mother.
• Conan suspected the disguised Kudo Yukiko belonged to the Black Organization, escaped from her car, and called Xu Yue for help.
• Xu Yue told Conan to hide at Professor Agasa’s house, but Kudo Yukiko seized him and dragged him away.

Conan escaped his kidnappers and investigated Beika Hotel 30, but was captured by Kudo Shinichi, who revealed the ordeal was a staged test arranged by his parents. After making peace with them, Conan returned to the Mori Detective Agency, while Kenji Dohihara opened the Tokko Detective Agency.

• Conan cut through his ropes, hid in the underground wine cellar, and found a clue pointing him to Beika Hotel 30.
• Conan called Xu Yue and learned from Miyano Akemi that he had been shot, so he decided to handle the case alone.
• Conan identified Room 301 and sneaked inside, but Kudo Shinichi caught him and pretended to shoot him with a toy gun.
• Xu Yue, Kudo Yusaku, Kudo Yukiko, and Professor Agasa revealed the kidnapping had been a rehearsal to test Conan's abilities and reassure his parents.
• Kudo Yusaku and Kudo Yukiko returned Conan to the Mori Detective Agency, left ten million yen for his care, and fled Japan after Conan arranged for publishers to confront them over their manuscripts.
• Kenji Dohihara added a newspaper clipping about Kudo Yusaku and Kudo Yukiko to his wall and opened the Tokko Detective Agency.

Xu Yue went to the Mori Detective Agency after Maya reported that Heiji Hattori had arrived, and discovered a one-armed, limping Reincarnator investigating Kudo Shinichi. The Reincarnator, Kenji Dohihara, believed he had found a strong lead on Shinichi and was closing in on his hiding place.

• Maya notified Xu Yue that a dark-skinned young man had visited the Mori Detective Agency, so Xu Yue went there.
• Xu Yue entered during Heiji Hattori’s deduction and recognized the one-armed, limping Kenji Dohihara as a likely Veteran Intruder.
• Heiji offered Conan Lao Baigan as a cure for his cold, but Xu Yue took the cup and identified the drink as strong alcohol.
• Heiji introduced himself as a high school detective seeking to compare himself with the missing Kudo Shinichi.
• Kenji Dohihara explained that he had investigated Heiji and Kogoro Mouri while searching for Shinichi, and concluded that Shinichi was hiding nearby.

Kenji Dohihara followed Kogoro Mouri and the others to the Tsujimura home to investigate Sachiko Katsuragi, the diplomat’s son’s girlfriend. They found Isao Tsujimura dead in his study, giving Kenji an unexpected murder case to solve.

• Mrs. Tsujimura asked Kogoro Mouri to investigate Sachiko Katsuragi, and Heiji Hattori proposed visiting the Tsujimura home with the others.
• Mrs. Tsujimura brought the group to meet her husband, where her son introduced Sachiko despite his mother’s hostility toward her.
• The group encountered Tsurumura Toshimitsu before Mrs. Tsujimura unlocked her husband’s study.
• Xu Yue found Isao Tsujimura dead after he toppled from his chair, while Kenji Dohihara welcomed the chance to solve a murder.

Sato Xu Yue investigated the death of Tsujimura’s husband and identified the likely murder weapon, surprising Heiji Hattori and Kenji Dohihara. After Inspector Megure arrived, the key evidence pointed to a locked-room murder, leaving the suspects and detectives baffled over how the killer entered.

• Sato Xu Yue found a needle behind the victim’s ear and concluded that a neurotoxin had likely caused his death within the past thirty minutes.
• Heiji Hattori recognized Sato Xu Yue as the country’s youngest Superintendent General and the Head of the Metropolitan Police Department Security Department.
• Inspector Megure arrived, and Sato Xu Yue explained that the doors and windows had been locked from inside.
• Mrs. Tsujimura said the room had only two keys, and Inspector Megure found the second key in the victim’s pocket.
• Heiji Hattori declared the death a locked-room murder, leaving everyone to wonder how the killer had entered.

Kenji Dohihara reconstructed how the killer used fishing line through the door gap to put the key in the victim’s pocket, prompting the victim’s father to confess. Xu Yue challenged whether the method reliably worked, and Dohihara paid the Space for another guaranteed attempt as he tried to secure the case reward.

• Inspector Megure found tape with a raised line on the victim’s key holder, while he questioned the witnesses and Ran carried the feverish Conan away.
• Kenji Dohihara found fishing line in the trash and demonstrated how it could pull the key through the gap beneath the door into a pocket.
• Dohihara accused Old Mr. Tsujimura, citing the fishing line and the time needed to set up the trick, and Old Mr. Tsujimura confessed.
• Xu Yue pointed out that the key had not reached Inspector Megure’s inner pocket, and Dohihara blamed the failed attempt on his setup.
• Dohihara paid the Space to guarantee a successful reconstruction, but Xu Yue demanded another test and Dohihara accepted after learning the cost could be refunded if he solved the case.

Xu Yue exposed Mrs. Tsujimura as the killer and revealed the family history behind the murder. Kenji Dohihara failed the case, while Xu Yue arranged for Kogoro Mouri to receive public credit.

• After Xu Yue pointed out that the victim's folded keys could not have entered his pocket, Kenji Dohihara realized his staged explanation could not hold.
• Xu Yue explained that Mrs. Tsujimura killed her husband in plain sight, using loud opera to mask sounds and books to hide his expression.
• Xu Yue opened Mrs. Tsujimura's key ring and found a groove for the poisoned needle, prompting her to confess.
• Xu Yue revealed that Sachiko Katsuragi was Mrs. Tsujimura's daughter and explained how the victim had framed her former husband.
• As Mrs. Tsujimura was taken away, she asked her son Takayoshi to care for Sachiko.
• Xu Yue asked Inspector Megure to credit Kogoro Mouri publicly, while Heiji Hattori chose Xu Yue as his new rival.

Xu Yue solved the case and humbled Heiji Hattori, while Kenji Dohihara reassessed his failure and joined forces with Zaizhen. Later, Conan continued solving cases and signed up for a Sherlock Holmes-themed tour group, bringing Xu Yue along.

• Xu Yue solved the case, lectured Heiji Hattori about treating deduction as a competition, and Conan passed out after seeing the result.
• Kenji Dohihara thanked Xu Yue, then reflected on his mistakes after returning to the agency.
• Zaizhen visited Kenji Dohihara, revealed that he had discovered the space’s hidden ability, and proposed cooperating and sharing intelligence.
• The Reincarnators’ balance around the Kudo residence continued to shift as they cautiously sought out their respective camps.
• Conan solved several more cases, then signed up for a Sherlock Holmes fan tour group and invited Xu Yue along as repayment for his cooking.

Conan brought Kogoro Mouri, Ran, and Sato Xu Yue to a Sherlock Holmes fan event at Hiroyuki Kanaya’s cliffside lodge, where Kogoro was mocked before the host explained why he had been invited. The guests began a thousand-question test to qualify for a deduction contest and a rare first-edition book, while Xu Yue watched for the case to develop and planned to keep Conan’s identity from Heiji Hattori.

• Conan’s tour group traveled to Hiroyuki Kanaya’s lodge, where Kogoro Mouri was excluded by the Sherlock Holmes fans after naming The Murder on the Orient Express as his favorite.
• Hiroyuki Kanaya introduced himself as the event’s organizer and defended Kogoro’s invitation by identifying him as a Famous Detective.
• Heiji Hattori arrived, greeted Ran, Conan, Kogoro, and Sato Xu Yue, and drew the fans’ ire by saying he preferred Queen Ellery’s works.
• Kento Toba and Ayako Ohki mocked Kogoro, and Hiroyuki Kanaya redirected the group’s attention to a first-edition Conan Doyle book as the grand prize.
• Hiroyuki Kanaya announced a thousand-question test, a 990-point cutoff, a deduction contest the following night, and a ban on communication devices.
• Xu Yue began answering the test, confident in his memory, and planned to keep Heiji from learning Conan’s identity.

After Hiroyuki Kanaya failed to appear, the group watched his car drive off a cliff and discovered that the lodge had been cut off from the outside. Xu Yue took charge of the murder investigation, while Ayako Ohki claimed to know the killer but backed down when he demanded evidence.

• Xu Yue and several other guests left the hall after Hiroyuki Kanaya failed to show up, while Kogoro Mouri, Conan, Heiji Hattori, and the college student couple continued waiting.
• Kento Toba spotted Hiroyuki Kanaya driving toward the cliff, and Conan and Heiji Hattori tried but failed to stop the car before it plunged over.
• The guests found their phones destroyed and the other car disabled, and Heiji Hattori and Kento Toba concluded that Hiroyuki Kanaya had been murdered.
• Xu Yue took charge as the police officer, warned that the culprit might strike again, and said everyone except those in the hall at the time was a suspect.
• Ayako Ohki claimed she knew the killer and had decisive evidence, but Xu Yue demanded she reveal it, so she pretended she had only been bluffing and Xu Yue left to rest.

After Ayako Ohki died in a garage explosion, Xu Yue explained how she had been lured to the car and triggered the blast, while the group suspected a killer was still among them. During a sudden blackout, an attacker struck Toshiro Fujiike, and the chapter ended with him down and an intruder apparently escaping through a broken window.

• Xu Yue and the tour group put out the garage fire and found Ayako Ohki's charred body inside a car.
• Xu Yue reasoned that Ayako Ohki had been lured to the damaged car with the promise of a collector's edition book, then ignited gasoline fumes with her lighter.
• Toshiro Fujiike revealed a note directing him to the book beneath the car's rear seat, and the group returned to the lodge's main hall.
• As Kento Toba questioned Toshiro Fujiike about the note, the power went out and Toshiro lit his lighter.
• After a scream and breaking glass, Xu Yue ordered everyone down and fired his gun; when the lights returned, Toshiro lay on the floor with an ice pick in his vest, and a hall window was broken.

After Toshiro Fujiike was attacked during a blackout, Xu Yue and Heiji Hattori concluded that the killer was inside the house and that Ayako Ohki had been killed after confronting the culprit. Xu Yue withheld his solution for lack of evidence, while Conan decided to use Heiji Hattori to make his deduction and Xu Yue prepared to expose Conan’s identity.

• Xu Yue identified Toshiro Fujiike’s fatal back wound, and Hitomi Iwai explained that the power had gone out after the coffee maker tripped the breaker.
• Heiji Hattori found evidence that the culprit had used a chair to break the window, then wiped away fingerprints after the lights returned, proving the killer was inside the house.
• Xu Yue deduced that Ayako Ohki had likely been killed impulsively after replacing Toshiro Fujiike as the intended victim, and Heiji Hattori proposed that she had confronted the culprit with a clue.
• Ran recalled seeing Ayako Ohki hide her answer sheet, prompting suspicion that she had discovered someone cheating, while Kento Toba’s alibi ruled him out as the killer.
• Xu Yue received a mission to make Heiji Hattori discover Conan’s identity, then claimed he knew the method but lacked evidence and showed Conan his completed test paper.
• Conan decided to use Heiji Hattori as the person through whom to perform his deduction and shot him with a dart, while Xu Yue watched with amusement.

Conan exposed Kento Toba as the murderer by explaining how he had faked an alibi and revealing a clue from the Sherlock Holmes test. After Xu Yue handcuffed Toba, Heiji Hattori confronted Conan about being Kudo Shinichi.

• Conan explained that Toba used a heated car and rigor mortis to make a corpse appear to drive away long after the murder, defeating his alibi.
• Conan showed that Toba had not answered any questions on the Sherlock Holmes test, exposing his motive and linking the circumstantial evidence into a case against him.
• Toba confessed to killing Hiroyuki Kanaya and Toshiro Fujiike, though he claimed he had stabbed Fujiike only once and was unsure how the second wound occurred.
• Heiji pretended he had just woken up, while Xu Yue revealed that he had heard Conan's deduction and handcuffed Toba.
• Xu Yue told Conan that Heiji had woken during Kogoro Mouri's punch, and Heiji confronted Conan about his true identity.

Xu Yue followed Conan’s tour group to the Izu Peninsula, where the members were trying to identify their organizer, the Dark Duke, to win a mysterious software code and a fee waiver. After meeting the group at their hotel, Xu Yue drew attention to Kogoro Mouri’s reputation and became interested in karate champion Satoshi Maeda.

• Xu Yue learned that Conan had joined a tour group organized by someone using the alias Dark Duke and decided to travel to Izu with Miyano Akemi.
• Xu Yue and Miyano Akemi relaxed on an Izu beach until Xu Yue spotted Ran and realized Conan’s group was nearby.
• Kogoro Mouri learned the tour fee would only be waived if the group identified the Dark Duke, while Shiro Konno tested members by recording their reaction times.
• The tour group’s other members appeared, including Genichiro Kinjo, Hayashi Shizue, Hideko Kamijo, Satoshi Maeda, and Akiko Sayama.
• Xu Yue and Miyano Akemi greeted Conan’s group, and Xu Yue’s mention of the Dark Duke computer virus unsettled the tour members.
• Xu Yue praised Kogoro Mouri as a famous detective, prompting the group to view him as an unfair advantage, while Xu Yue studied Satoshi Maeda as a potential challenge.

Xu Yue investigated the masked attacker who pushed Conan into the pool and confronted hacker Jian Yuan Shilang with a mysterious program. Jian Yuan Shilang realized Xu Yue could expose his crimes and feared for his ex-wife Hideko Kamijo, who knew about them.

• A masked figure dressed as the Duke of Shadow pushed Conan from the second-floor balcony into the pool, where Xu Yue rescued him.
• Conan told Xu Yue that someone wearing a Dark Duke mask had pushed him, and Xu Yue took him back to Ran while concealing the incident.
• Xu Yue confronted Jian Yuan Shilang about his hacking crimes and gave him a floppy disk containing a program.
• Jian Yuan Shilang opened the disk in his room and was stunned by the program's capabilities, then worried that Xu Yue might reach Hideko Kamijo.

Kogoro Mouri questioned Satoshi Maeda and Akiko Sayama about the Dark Duke, while Xu Yue drew the group’s attention with food seasoned from his spice box. He left with Hideko Kamijo and used the food and his technique to make her answer his questions, leaving Conan suspicious of his motive.

• Kogoro Mouri questioned Satoshi Maeda and Akiko Sayama, suspecting them of being the Dark Duke.
• Xu Yue seasoned the group’s food, and the fragrance drew the diners into eating despite Akiko Sayama’s earlier lack of appetite.
• Hideko Kamijo approached Xu Yue and asked to try his cooking, so he offered to prepare food for her elsewhere.
• Xu Yue left with Hideko Kamijo after asking Miyano Akemi to return to her room, and Conan wondered whether Xu Yue had another motive.
• Xu Yue drugged Hideko Kamijo with food and used his technique to overpower her before demanding answers to his questions.

After Jian Yuan Shilang was found dead dressed as the Dark Duke, Kogoro Mouri initially concluded that he had fallen by accident while climbing between balconies. Xu Yue discovered evidence that the locked room had been staged, turning the death into a suspected murder and leaving Akiko Sayama alarmed that she might be implicated before acting.

• Conan found Jian Yuan Shilang's body at the hotel, dressed as the Dark Duke, and Inspector Yokomizo arrived to investigate.
• Inspector Yokomizo asked Kogoro Mouri for help, and the group went to Jian Yuan Shilang's room, where a burglar lock barred the door.
• Xu Yue kicked the door open, and Kogoro Mouri concluded Jian Yuan Shilang had accidentally fallen while trying to climb between balconies.
• Xu Yue found tape traces on the burglar lock and demonstrated how it had been fastened from outside, showing that the locked room had been staged.
• The tour group members became suspects, and Akiko Sayama privately panicked because she had not yet done anything.

After a murder investigation widened to include possible outsiders, Xu Yue lured Satoshi Maeda to the hotel rooftop and offered to spare Akiko Sayama if Satoshi attacked him. Satoshi drank Xu Yue’s strength-enhancing reagent and fought him at the rooftop’s edge, while Xu Yue sought to push beyond his limits.

• Inspector Yokomizo questioned the tour group and identified Shiro Konno, Satoshi Maeda, and Akiko Sayama as people without alibis.
• Xu Yue warned that Jian Yuan Shilang’s enemies meant an outsider could also have murdered him, complicating the investigation.
• Xu Yue went to the rooftop terrace and confronted Satoshi Maeda, offering to let Akiko go if Satoshi pushed him off.
• Xu Yue gave Satoshi a green reagent, and Satoshi drank it to gain explosive strength.
• Satoshi attacked Xu Yue at the edge of the rooftop, but Xu Yue countered his strikes and continued fighting to test his limits.