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The Adventure of the Clouded Kokoro
AoCK Card
Trial data

Feb. 19-20, 1900

Courtroom No.

Old Bailey

Presiding judge


Defense team leader

Ryūnosuke Naruhodō

Defense team assistants

Susato Mikotoba (Legal Assistant)


Barok van Zieks


Sōseki Natsume


Viridian Green

Time of attack

February 17, 1900

Weapon used

Non-fatal stab to the back with a knife


Not Guilty

Tobias Gregson
Patrick O'Malley
Rola O'Malley
John Garrideb
Joan Garrideb
Other characters
Hart Vortex
Sherlock Holmes
Iris Watson
William Petenshy
Decargo Mieterman
Oscar Fairplay (Juror No. 1)
Chief Justice's Office
Briar Road
Detention Center
Holmes's Room
Sōseki's Boarding House
Landlord Garrideb's Room
Sōseki Natsume's Room
Old Bailey
Defense Armband
Ryūnosuke Naruhodō
The impact of the trial from yesterday... Is still strongly echoing within my heart, even right now. But even so... I'm not going to turn my back on it anymore.
Episode 4: The Adventure of the Clouded Kokoro is the fourth episode of the game Dai Gyakuten Saiban: Naruhodō Ryūnosuke no Bōken and follows Ryūnosuke Naruhodō's second appearance in the English court. Following Megundal's acquittal and subsequent murder in the previous episode, Ryūnosuke immediately begins investigating another case. Hart Vortex asks him to defend Sōseki Natsume, whom no one will defend because he is Japanese. He once again meets the enigmatic Sherlock Holmes and his little biographer, Iris Watson.


Green Stab Photo

Green's collapsed, but alive, body on the street after her stabbing.

On a cold winter's night, Sōseki Natsume was returning home after buying some books from a book store. On the other side of the road, a married couple witness the Japanese man stab a woman in the back, before running away. Sōseki is arrested by the Scotland Yard after Sherlock Holmes deduces he was on the same road that night.


The episode starts with Hart Vortex accepting Ryūnosuke as a bona fide defense attorney. He was so impressed by Ryūnosuke's performance in court yesterday that he already has a new client lined up for him.

Vortex leaves, telling you to ask the policeman in the corner for information about your new case. The policeman is Inspector Tobias Gregson, and he tells you that the victim in this case is a woman who was stabbed in the back while walking down Briar Road. She is alive, but in critical condition in the hospital. Gregson says that Barok van Zieks will be the prosecutor in tomorrow's trial. Gregson also thinks that van Zieks arranged for Cosney Megundal's murder to protect his perfect record, but that case is not Ryūnosuke's problem for now. Gregson invites Ryūnosuke to meet his client, Prisoner 53, at the detention center.

Ryūnosuke and Susato go to the detention center to meet their client, who introduces himself as Sōseki Natsume. One year ago, Sōseki was ordered by the government to research the English language, and he has been in England ever since. On the night of the crime, Sōseki was walking home along Briar Road after buying some books at an antique bookstore. He only saw one other person on the path, a woman in a green jacket. As he was passing the woman, she suddenly screamed and collapsed with a knife in her back. Sōseki called to her, but she didn't move, so he assumed she was dead and ran away. Sōseki did not know the victim. He was woken in the morning by the police and Sherlock Holmes, who had deduced Sōseki's presence at the crime scene. Sōseki was so panicked that the only English phrases he could remember were "Yes, I do!" and "I'm fine!" Sōseki had asked several lawyers to defend him, but because he ran from the crime scene and is a suspicious foreigner, no one will take his case. Ryūnosuke agrees to help and goes to the crime scene to search for clues.


The judge announces the six jurors for this trial: Oscar Fairplay, a young woman, a young man, Joan Garrideb, a worker, and an elderly man.


  • This is the first case in the Ace Attorney series in which the victim is attacked, but survived the ordeal (attempted murder). The second case would be its sequel case, The Memoirs of the Clouded Kokoro.

Name Edit

  • Kokoro is a novel by Sōseki Natsume, with the title literally meaning "heart" or "the heart of things" or "feelings." Thus, the full title means "The Adventure of the Clouded Heart," referencing Naruhodō's mixed feelings about his previous trial.

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