1-nichi Koshitsuroku Numakawa (1日個室録ヌマカワ, Numakawa: One-Day Suite Pass) is a spin-off from the Kaiji series which follows Numakawa, a worker under Ōtsuki.

Trivia Edit

  • It is the first spin-off from the main series that features a character not part of the main cast.
  • It is currently the only spin-off not to be animated.
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