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Yūjin Mikotoba
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Yūjin Mikotoba was a legal professor at Teito Yūmei University and the father of Susato Mikotoba. In addition to acting as a mentor to Kazuma Asōgi, Yūjin was also the one who invited John Watson to teach in Japan. He is also Sherlock Holmes' investigative partner.

A child in need Edit

Main article: Professor Killings
Holmes Flat

The chest containing all his adventures

Sometime after his wife Ayame's death, Yūjin traveled to England with Genshin Asōgi and Seishirou Jigoku to study abroad. While there he became friends with John Watson and his partner Courtney Sithe, and became the partner of London's legendary detective, Sherlock Holmes. He writes down all their adventures together and locks them up in a chest in Holmes' flat.

Suddenly, Genshin was arrested for being a serial killer, a secret trial was held for the fear of war. Yūjin and Courtney were distracted during Klimt van Zieks' autopsy. After Genshin was found guilty he told to visit a certain address. He did as was told and found a woman at the home address about to give birth. He helped deliver the baby girl, but the mother died shortly after. Seeing a chest with a certain "B" crest on it in the corner of the room, Yūjin realized something dreadful. The newborn girl he was holding was the child of Klimt van Zieks and a woman of the Baskervilles. As he had to return to Japan, he left the baby in the care of Sherlock Holmes. Yūjin named the girl Iris after his deceased wife, Ayame, before he left for Japan.

Naruhodō's first trial Edit

Main article: The Adventure of the Great Departure

Yūjin first appeared with his daughter, Susato, when Genshin's son, Kazuma, is getting ready to defend his best friend, Ryūnosuke Naruhodō, for the murder of John Watson before his own study abroad. He tells Kazuma to go to the judge's chambers with Susato before revealing to Naruhodō that he won't go on his trip if he loses the trial. Yūjin tells him to say "I am" when judge Jigoku asks a question.

That question was "Who is standing for the defendant?" So Naruhodō defended himself in court. During the recess, Kazuma was mad a Yūjin thinking he didn't have what it took. Yūjin reveals that he was the one who invited Watson overseas to become a professor. Eventually, Watson's killer was revealed to be a British woman named Jezail Brett. When her crimes were revealed, Yūjin announces with Satoru Hosonaga that Brett can never be tried in Japan due to the consular court of Great Britain. So she will soon be sent to Shanghai, the group then goes off to celebrate.

Calling Susato back Edit

Main article: The Adventure of the Unspeakable Story

About nine months after John Watson's death, Yūjin Mikotoba appeared on the steamship Sōseki Natsume was one when he was returning to Japan. He was interested the second incident he was involved in, the Case of the Haunted Lodging". Then he sent a telegraph to Susato saying he had an illness and she needed to come back.

Assisting Susato Edit

Main article: The Adventure of the Blossoming Attorney
Yujin Natsume newspaper

In the newspaper with Sōseki Natsume

Yūjin Mikotoba then spoke to Sōseki Natsume during a lecture at Teito Yuumei University, the author was accompanied by Heita Mamemomi, a reporter for the Taikoku News. Then he went off for some work to do. Meanwhile, Jezail Brett, we one day left before she would leave for Shanghai, was killed in a bathhouse. The suspect was one of the late Dr. Watson's students and Susato's best friend, Haori Murasame.

Susato Mikotoba decided to disguise herself as "Ryūtarō Naruhodō", cousin of Ryūnosuke Naruhodō. Yūjin Mikotoba was impressed at his daughter's disguise but fears that her nervousness will give herself away.

Trip back to England Edit

Main articles: Twisted Karma and His Last Bow and The Resolve of Naruhodō Ryūnosuke


  • His given name "Yūjin" (悠仁) means "friend", referencing his friendship with Watson, Holmes, Jigoku, and Asōgi.

Notes Edit

  • Yūjin is the only protagonist without an Objection! voice clip, as his playable section is a Joint Reasoning investigation with Holmes.
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