Koreyuki Tani is a member of the Go Club.
He's a bit smug and a little arrogant.
He has light brown hair cut into a bowl-shaped haircut and brown eyes.
Before Satoshi goes up to his designated buzzer for the Quiz Trial 7, one other participant calls to him. Satoshi recognizes that this person is "Tani-kun" from the Go Club. Before they can talk about something interesting that happened in the Go club, Satoshi has to go and introduce himself to the crowd. Koreyuki and Satoshi lose in the Quiz Trial, and then Koreyuki informs him that the Go Club had some playing stones chosen. He then challenges Satoshi in the cooking competition that was set for the next day. Koreyuki loses the cooking comeptition to Satoshi.
He then appears as one of the wannabe dectectives trying to rat out Jūmonji.
Koreyuki sees himself as Satoshi's rival. Though, by the looks of it, Satoshi only finds him annoying.
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|Kamiyama High School Students|
|Fuyumi Irisu | Masashi Tōgaito | Jirō Tanabe | Muneyoshi Kugayama | Kaho Jūmonji | Ayako Kouchi | Shōko Yuasa | Kurako Eba | Jun'ya Nakajō | Tomohiro Haba | Misaki Sawakiguchi | Takeo Kaitou | Midori Yamanishi | Mamiko Senoue | Takeo Katsuta | Yuri Kounosu | Koreyuki Tani | Ariyoshi | Iizuka | Henmi | Matsushiro | Nakayama | Mayu Hongō | Yasukuni Yoshino|
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