ハチワンダイバー (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Sugata is a young man who is not a professional chess player, but a "serious master" who gambles for a living. He is proud to be the strongest amateur shogi player in Japan, but he is beaten by a female serious master from Akihabara!　The tension is boundless!　The battle of unprecedented chess played in the 81-square-meter universe is about to begin!

(Translator: DeepL)