The Kindaichi Case Files Wiki
The Kindaichi Case Files Wiki
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Spoiler warning!
This article contains plot details about an upcoming episode.

Seiji Ishiyama is a student at Tokyo Art and Music University and the culprit of Quartet with Intent to Kill. Kirishima and him have been dating since the first year, and we were on good terms discussing their ideals together.

However, due to the harsh reality that only a few of them are in the spotlight as world-famous musicians, their relationship is strained, and in the end, Kirishima abandons Ishiyama for her own dream and sleeps with Professor Shiina, giving her the advantage of studying abroad. He felt that Kirishima betrayed him both as an artist and as a lover.

Appearance[]

Personality[]

He's annoyed that everyone is falling apart at this concert. However, he doesn't seem happy that Kirishima is going to go to the Kunitachi Conservatory by going out with Professor Shiina.

He didn't intend to kill her at first, but when her harassment caused Kirishima to injure her pinky finger with her thorny rose, he came up with a murder plan that allowed him to kill her without suspicion.

After Ishiyama said that he himself got on the devil's whisper, Akechi said, ``The devil doesn't understand art, '' and tried to blame all the unrelated performers except himself who had a stringed instrument that could shoot arrows. It will be pointed out. Akechi's words made him realize his mistake, and he was about to be arrested without saying a word.

Relationships[]

Trivia[]

  • His name is possibly a reference to the late Japanese conductor Seiji Ozawa
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