Shuuichirou Oonuma

大沼 秋一郎

Also Known As:

  • The Gunpowder


Shuuichirou Oonuma is an elderly professional mahjong player and a supporting character of the manga "Saki". He serves as a commentator for Kagoshima Prefecture's qualifying tournament. Oonuma is one of the few people to take notice of the four-wind "gates of hell" yakuman hand regularly produced by Hatsumi Usuzumi of Eisui Girls' High School.

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