Chapter Summaries

Tom sent Conan a bottle of alcohol that restored him temporarily to his original form, forcing him to reveal his identity and the truth about the Black Organization to Ran. The chapter ended with Shinichi Kudo realizing that Tom had planned the transformation and that, with Ran now informed, he did not need to rush to become himself again.

• Jerry forced Conan to drink the alcohol Tom had sent and delivered a note predicting a cure for his cold and a surprising change.
• As Conan's fever and heartbeat intensified, his body grew until he returned to his original form, and Ran recognized him as Shinichi Kudo.
• Shinichi explained his shrinking, his deception, and the Black Organization to Ran, who moved from shock and anger to concern.
• Shinichi told Ran that he did not know whether the alcohol was an antidote and sensed that his restored form might only be temporary.
• Jerry left Tom's note, which revealed that the alcohol temporarily overcame Shinichi's drug resistance and that Tom had expected Ran to learn the truth.

Miyauchi Hiyage prepared to introduce Jerry and used his diary to share observations and avatar designs with the girls. The group discussed an upcoming autograph-session gathering, while Yukino Yukinoshita finally spoke up to explain the Service Club.

• Miyauchi Hiyage hacked into the Metropolitan Police Department's population database to investigate people and considered recruiting talented AI developers.
• Miyauchi Hiyage finished several Camera Obscura units, equipped Jerry with an enchanted pouch, and sent him out to investigate spirits.
• Miyauchi Hiyage wrote about his recent trip, sent Gokō Ruri four avatar designs, and mentioned what he had found about Yukino Yukinoshita, Hachiman, and Sawagoe Itaru.
• Gokō Ruri blushed at the diary's designs, while the group planned to meet at Kashiko Kasumi's autograph session and hold an arcade tournament afterward.
• Kasumigaoka Utaha asked whether Yukino Yukinoshita had joined the group, and the panda-avatar user Mr. Pan explained that the Service Club helped people solve problems and change themselves.

Yukino Yukinoshita revealed herself in the chat group and discussed her plans for the Service Club, while the girls speculated about Mai Sakurajima and her Puberty Syndrome. The conversation then turned to Black Cat, whose power repeatedly went out as she worked on a model.

• Kasumigaoka Utaha asked Mr. Pan whether he was Yukino Yukinoshita, and Yukino admitted her identity in the chat group.
• Yukino said she was still considering the Service Club and planned to change its policies and the people it helped.
• Yukino redirected the group's attention to Mai Sakurajima, prompting the girls to discuss the actress's hiatus, workload, and possible Puberty Syndrome.
• Shinomiya Kaguya estimated that around twenty girls possessed diaries and noted that many characters mentioned by You Know Who were not group members.
• Fallen Saint Black Cat complained that her power had gone out while she was drawing, then reported that the breaker tripped again soon after she reset it.

Gokō Ruri investigated strange power outages and a television that turned on by itself, suspecting a yokai had entered her home. Shitamachi Godmother Takeda Misae arrived to investigate, but her use of Spiritual Power drew attention to Jerry, who had been quietly watching television.

• Gokō Ruri’s power repeatedly went out, and a television turned on despite her sisters insisting they had not touched it.
• Gokō Ruri asked Shinomiya Kaguya to consult Takeda Misae, who said the intruder was likely a harmless small yokai and offered to investigate.
• Gokō Hinata reflected on Gokō Ruri’s recent improvements in stamina and the electrical arcs she had seen coming from her sister’s hands.
• Jerry watched television from atop a cabinet while Gokō Hinata and Gokō Tamaki sat nearby, unaware of him.
• Takeda Misae arrived at Gokō Ruri’s home and crushed Magic Orbs to spread Spiritual Power through the room, with Jerry still watching television.

Takeda Misae investigated the strange power outages at the Gokō home and set a Spiritual Power trap to catch the supposed monster. The trap’s bait and Magic Orbs vanished, and Gokō Tamaki revealed that a yellow mouse had carried them away; Jerry had escaped with the loot.

• Takeda Misae tried to sense the mouse but failed to notice Jerry, who felt her Spiritual Power and decided to teach her a lesson.
• After the lights went out again, Takeda Misae found mouse fur, climbing marks, and a hole near the circuit breaker, then planned to lure the creature with a trap.
• Takeda Misae built a Spiritual Power barrier and used a valuable jade piece and Magic Orbs as bait.
• Takeda Misae discovered that the jade and several Magic Orbs had disappeared from the trap.
• Gokō Tamaki told Gokō Ruri that a yellow mouse had carried away the items and juggled little beads before leaving.

Gokō Ruri discovered that the mysterious mouse in her home was Jerry, whom You Know Who had sent to stay with her, and she helped resolve the misunderstanding with Takeda Misae. After Jerry demonstrated his mastery of Ripple Breathing, Ruri decided she wanted him to stay so she could learn from him.

• Gokō Ruri recognized Jerry and stopped Takeda Misae from attacking him, then explained the situation to Shinomiya Kaguya through the group chat.
• Takeda Misae accepted Kaguya's reassurance and left for the Shinomiya Family, while Gokō Ruri accompanied her to the station to apologize.
• Gokō Ruri returned home and found Tamaki feeding Jerry fruit while Hinata treated him like a deity.
• The Diary holders discussed why You Know Who had sent Jerry to Ruri and rejected plans to track him, while Ruri invited them to visit and try taking him away.
• Jerry used Ripple Breathing to make Tamaki fall asleep in seconds, impressing Hinata and showing Ruri how far his skill exceeded hers.
• Gokō Ruri decided she wanted Jerry to stay at her home so she could learn more Ripple Breathing techniques from him.

Miyauchi Hiyage planned an urban-legend video and recruited Sakakibara Kouichi, while learning that Shiina Mashiro was moving in with Shiina Mahiru and that Miyauchi Guanghua had grown close to Mahiru. Later, Hiyage spotted Itou Kaiji about to guarantee a coworker’s loan and warned him, leaving Kaiji’s decision unresolved.

• Miyauchi Hiyage decided to film an urban-legend video and persuaded Sakakibara Kouichi to join him.
• Miyauchi Guanghua told Hiyage she would help Shiina Mahiru welcome her cousin Shiina Mashiro, who was returning from London.
• Miyauchi Hiyage planned to scout an abandoned mansion for his video but learned its old murder case had already been solved.
• Miyauchi Hiyage overheard a convenience-store employee urging Itou Kaiji to guarantee a loan and warned Kaiji to check the agreement carefully.
• Miyauchi Hiyage recognized Kaiji’s future in Gambling Apocalypse: Kaiji and prepared to stop him from signing.

Miyauchi Hiyage stopped Itou Kaiji from becoming trapped in a predatory loan guarantee and gave him a business card, hoping to recruit him for Asahigaoka Media. In his diary, Hiyage warned that scattered Takanashi relatives might be connected and urged Evil Eye to help a Takanashi family whose patriarch and third wife would soon die in a plane crash; the girls then discussed the warning and their plans for Kasumigaoka Utaha’s autograph session.

• Miyauchi Hiyage exposed the predatory terms of Furuhata Takeshi’s loan and warned Itou Kaiji that signing the guarantee could saddle him with enormous debt.
• Itou Kaiji refused to guarantee Furuhata Takeshi’s loan, thanked Miyauchi Hiyage, and accepted his Asahigaoka Media business card.
• Miyauchi Hiyage inspected an abandoned villa as a possible filming location, then wrote that Takanashi relatives across Japan might affect one another’s fates.
• Miyauchi Hiyage told Evil Eye that a Takanashi patriarch and his third wife would soon die in a plane crash, leaving three daughters, and asked her to find a way to help.
• The girls discussed Kasumigaoka Utaha’s autograph session and a possible gaming meetup, while Gokō Ruri stayed home to care for Jerry and asked Evil Eye how she would handle the Takanashi family warning.

Takanashi Rikka identified her fourth uncle as the Takanashi who might die in a plane crash, and Shinomiya Kaguya offered to help locate him and the flight. Yukino Yukinoshita visited the Gokō residence to learn advanced Ripple Breathing from Jerry, where Jerry immediately teased her about her figure.

• Takanashi Tōka told Rikka that their fourth uncle, Takanashi Shingo, had been married several times and lived in Tokyo, while Rikka concealed the source of her warning.
• Takanashi Tōka decided to contact Takanashi Shingo, and Shinomiya Kaguya volunteered to help locate him and the flight that might crash.
• Kasumigaoka Utaha hurried to her autograph session and asked the girls meeting Yukino Yukinoshita to share a photo afterward.
• Yukino Yukinoshita explained that she had moved into an apartment and arrived at the Gokō residence to meet Gokō Ruri and challenge Jerry's training.
• Jerry compared Yukino Yukinoshita's figure with Gokō Ruri and Gokō Hinata, teasing her before she offered it pastries and asked to learn advanced Ripple Breathing methods.

Yukino Yukinoshita trained with Jerry and was assigned a task meant to confront her fears, while Miyauchi Hiyage recruited Itou Kaiji to make videos and met with Kaede Kagayama about expanding Asahigaoka Media. At Kasumigaoka Utaha’s signing event, she discussed her novel with Aki Tomoya while wondering whether You Know Who had come.

• Yukino Yukinoshita asked Jerry for guidance, but Jerry overwhelmed her Ripple and knocked her down while demonstrating its strength.
• Gokō Ruri explained how Yukino could learn from Jerry’s Ripple and told her that she had two more lessons before needing to complete a task.
• Jerry recalled Miyauchi Hiyage’s advice to make Yukino confront her fears and decided to have her walk a dog through a crowded place.
• Itou Kaiji called Miyauchi Hiyage to ask for a chance to make videos, and Miyauchi invited him to discuss the work.
• Miyauchi Hiyage called Kaede Kagayama about filming paranormal or case-analysis videos in Tokyo and requested a longer employment contract for Itou.
• At Kasumigaoka Utaha’s signing event in Radio Kaikan, Kasumigaoka Utaha discussed her novel with Aki Tomoya and kept wondering whether You Know Who was there.

Hayasaka Ai investigated suspicious people at a bookstore event while Miyauchi Hiyage arranged a supernatural-video project with Itou Kaiji and Sakakibara Kouichi. Outside the café, Hiyage encountered his sister and her friends, recognized Shiina Mashiro as a Diary user skilled in Ripple Breathing, and hid his discovery.

• Hayasaka Ai monitored suspicious people for Shinomiya Kaguya while overhearing Miyauchi Hiyage recruit Itou Kaiji and Sakakibara Kouichi to make videos.
• Miyauchi Hiyage proposed filming videos about murder cases and supernatural incidents, and Sakakibara Kouichi agreed to join the project.
• Feiris NyanNyan asked Miyauchi Hiyage for a business card after expressing interest in promoting Akihabara's moe culture through online videos.
• Miyauchi Hiyage and his companions ran into Miyauchi Kouka, Kato Megumi, Shiina Mahiru, and Shiina Mashiro outside the café.
• Miyauchi Hiyage sensed Shiina Mashiro's advanced Ripple Breathing and realized she was a Diary user, then concealed his discovery and let Miyauchi Kouka praise his photography skills.

Miyauchi Hiyage met Miyauchi Kouka's group in Akihabara and tried to explain why Shiina Mashiro and Kato Megumi sensed something unusual about him. After he claimed an ancient exercise method had strengthened him, Mashiro called it Ripple Chi Kung and asked whether he was Tom from the Diary, leaving Hiyage to conceal his reaction.

• Miyauchi Hiyage explained that he was filming paranormal videos and asked Miyauchi Kouka's group what had brought them to Akihabara.
• Shiina Mashiro told Hiyage that he had the scent of the sun, and Kato Megumi said she had sensed something similar about him.
• Shiina Mahiru and Itou Kaiji praised Hiyage as gentle, kind, and good-hearted, prompting Miyauchi Kouka to suspect there was more to the situation.
• Hiyage claimed that an ancient exercise method he had found at home had improved his physique, and Kouka remembered dismissing his earlier explanation as a prank.
• Shiina Mashiro identified the exercise as Ripple Chi Kung and asked Hiyage whether he was Tom from the Diary, while he feigned confusion.

Shiina Mashiro suspected Miyauchi Hiyage was the diary writer and accidentally exposed that she could see his hidden powers when he stopped her Ripple Breathing. Hiyage deflected suspicion from those around them, but Mashiro stayed close as the group entered Kasumigaoka Utaha’s book signing.

• Shiina Mashiro questioned Miyauchi Hiyage about being the diary writer and tested whether he could see her Diary.
• Miyauchi Hiyage stopped Shiina Mashiro from using Ripple Breathing in public, revealing to her that he could see it.
• Shiina Mashiro grabbed Miyauchi Hiyage’s hand and accused him of seeing the hidden effect, then held Miyauchi Kouka’s arm after Hiyage promised they could talk later.
• Miyauchi Hiyage explained Mashiro’s behavior as her mistaking him for his sister, while Kato Megumi and Sakakibara Kouichi watched without exposing him.
• Miyauchi Kouka led the group into the bookstore where Kasumigaoka Utaha was holding a signing event, and Mashiro looked to Hiyage when she heard Utaha’s name.

Shiina Mashiro asked Kasumigaoka Utaha for permission to adapt her story into a manga, and Utaha discovered that Mashiro was a new Diary holder. After exchanging contact information and meeting Mashiro’s companions, Utaha realized Guanghua had connected Mashiro to Kato Megumi.

• Miyauchi Hiyage agreed to help Shiina Mashiro draw manga as long as she did not reveal his secrets, and the group waited for Kasumigaoka Utaha’s signing event.
• Shiina Mashiro told Kasumigaoka Utaha she wanted to adapt her story into a manga, and Utaha recognized Mashiro’s Diary when she showed it.
• Shiina Mahiru explained that Mashiro had just returned from abroad, and Mashiro told Utaha she had already obtained Kato Megumi’s consent.
• Kasumigaoka Utaha signed Mashiro’s book, exchanged contact information with her, and accepted Guanghua and Miyauchi Hiyage’s books for signing.
• Guanghua explained that she and Miyauchi Hiyage were siblings and friends with the Shiina sisters, then revealed she was Kato Megumi’s deskmate and best friend.

Miyauchi Hiyage helped Shiina Mashiro choose manga, filmed a test video with Sakakibara Kouichi and Itou Kaiji, and later wrote about the signing event. Kasumigaoka Utaha realized You Know Who had attended in disguise, while Shinomiya Kaguya shared information about Shiina Mashiro with the chat group.

• Kasumigaoka Utaha treated Miyauchi Kouka and Miyauchi Hiyage warmly, signed his novels, and sent Kato Megumi a bookmark with an encouraging message.
• Miyauchi Hiyage helped Shiina Mashiro select manga, then reunited with Sakakibara Kouichi and Itou Kaiji to buy filming equipment.
• Miyauchi Hiyage directed Sakakibara Kouichi and Itou Kaiji as they filmed a test video at a deserted mansion, then rewarded them for their work.
• Kasumigaoka Utaha read You Know Who's diary update and learned that he had attended her signing event under several identities and seen through her clues.
• The chat group discussed You Know Who's disguises, and Shinomiya Kaguya shared Shiina Mashiro's information with the members.

Kasumigaoka Utaha learned that Shiina Mashiro was a world-famous painter who wanted to become a manga artist, and she considered how to collaborate with her. Miyauchi Hiyage received the Golden Rule ability, then visited Mashiro with Miyauchi Kouka and brought her Baumkuchen.

• Kaguya shared Shiina Mashiro’s profile in the group, astonishing the girls with her international reputation and artistic achievements.
• Kasumigaoka Utaha considered letting Mashiro adapt her story and wondered whether she could persuade Mashiro to draw Love Metronome instead.
• Miyauchi Hiyage received Golden Rule: A, which blessed him with extraordinary financial fortune, and found money blown against his bedroom window.
• Golden Rule brought Hiyage several unexpected gains, including cash and a major tax reduction for Asahigaoka.
• Sakakibara Kouichi asked Hiyage about their video, and Hiyage reassured him that the project had a strong chance of success and planned another shoot for Saturday night.
• Hiyage went with Miyauchi Kouka to visit Shiina Mashiro, bought Baumkuchen for her, and gave Kouka some cake and her weekly allowance.

Miyauchi Hiyage visited Shiina Mashiro, helped her practice Ripple Breathing, and made a pinky promise with her to keep his identity secret in exchange for helping her with manga and breathing. After Shiina Mahiru returned, Hiyage brought up Mashiro’s plans to become a manga artist and questioned whether her family was trying to steer her back toward the art world.

• Miyauchi Hiyage brought Shiina Mashiro Baumkuchen, then stopped her from eating the whole bag and guided her in using Ripple Breathing to digest what she had eaten.
• Miyauchi Hiyage explained that revealing his identity to more girls could put him at risk and asked Shiina Mashiro not to tell anyone about him.
• Shiina Mashiro made a pinky promise to keep Miyauchi Hiyage’s identity secret, while asking to eat Baumkuchen without restriction; Hiyage told her to discuss that with Shiina Mahiru.
• Miyauchi Hiyage promised to bring Shiina Mashiro more Baumkuchen, and Shiina Mahiru returned and recognized the name Asahigaoka Media.
• Miyauchi Hiyage told Shiina Mahiru and Miyauchi Kouka that Mashiro lacked knowledge of the manga industry and suggested her elders might be trying to make her give up manga and return to art.

Miyauchi Hiyage agreed to assist Shiina Mashiro with her manga career, while Shinomiya Kaguya’s attempt to question Jerry ended in humiliation and a renewed investigation into You Know Who. Hiyage’s first paranormal video became unexpectedly popular, and he accompanied Mashiro and her father, Shiina Asahi, to arrange her transfer to Houtonji High School.

• Miyauchi Hiyage told Shiina Mahiru that he and Miyauchi Kouka had agreed to help Shiina Mashiro pursue manga, and Mahiru accepted his offer of support.
• Jerry used Ripple Breathing to turn Shinomiya Kaguya into Little Kaguya, recorded her embarrassing antics, and gave her no useful information about You Know Who.
• Shinomiya Kaguya reviewed Hayasaka Ai’s investigation list, marked suspicious identities for further screening, and told Hayasaka to rest after handling the assignments.
• Miyauchi Hiyage’s paranormal video gained thousands of views overnight, and he recognized Hayasaka Ai’s alias among the comments from a viewer who could not sleep afterward.
• Miyauchi Hiyage and Miyauchi Kouka met Shiina Mashiro and Shiina Asahi to accompany Mashiro to Houtonji High School for her transfer procedures.
• Shiina Asahi asked Miyauchi Hiyage how he had met Mashiro, and Hiyage again explained that he was helping her draw manga.

Shiina Mashiro joined Houtonji High School and sought Eriri Spencer Sawamura’s consent to include her in a manga, while Eriri misunderstood the request as an invitation to collaborate. The chapter ended with Kasumigaoka Utaha pulling Eriri from class again, fueling rumors about their relationship.

• Shiina Asahi watched Miyauchi Hiyage’s improbable streak of finding money and a stray dog’s wallet, which belonged to Eriri Spencer Sawamura.
• Miyauchi Hiyage sent Miyauchi Kouka and Shiina Mashiro to return Eriri’s wallet and ask whether she could appear in Mashiro’s manga.
• The principal offered Shiina Mashiro a scholarship, flexible classes, and access to the art club, and she chose Miyauchi Kouka’s class.
• Eriri returned Mashiro’s enthusiasm and agreed to help with manga, mistakenly believing they were discussing a collaboration rather than her permission to be drawn.
• Shiina Mashiro left believing she had secured permission from Eriri, Kato Megumi, and Kasumigaoka Utaha, while she awaited Aki Tomoya’s reply.
• Kasumigaoka Utaha pulled Eriri from class again, prompting their classmates to assume the two had a special relationship.

Kasumigaoka Utaha learned that Shiina Mashiro had transferred to Houtonji High School and planned to adapt their story into manga, while Eriri Spencer Sawamura discovered that another work had made a classmate its heroine. Meanwhile, Shiina Asahi asked Miyauchi Hiyage to look after Shiina Mashiro and Shiina Mahiru, and the chapter ended with Kasumigaoka Utaha stopping Hiyage in the hallway.

• Kasumigaoka Utaha dragged Eriri Spencer Sawamura into an empty classroom and questioned her about Shiina Mashiro's transfer and manga plans.
• Kasumigaoka Utaha revealed that Shiina Mashiro had made a classmate of Aki Tomoya's the heroine of another work, and Eriri demanded to know who the girl was.
• Shiina Asahi walked with Miyauchi Hiyage, learned about his ambitions and video work, and asked him and his sister to look after Shiina Mashiro and Shiina Mahiru.
• Shiina Asahi exchanged contact information with Miyauchi Hiyage and left Houtonji High School.
• Kasumigaoka Utaha spotted Miyauchi Hiyage as he returned to class and stopped him while heading toward Shiina Mashiro with Eriri Spencer Sawamura.