王者の盤狂わせ

Ouja no Bankuruwase

In the world of online shogi, there is a living legend known as the “Emperor of Self-Destruction” who strikes fear even into the hearts of professional players. Contrary to the circulating rumors, his true identity is Shinsai Watanabe, an unremarkable, introverted high school boy. After joining the school shogi club by chance, Shinsai is entered into the “Yellow Dragon Tournament,” a national competition for amateur shogi players. Honing his skills alongside his shogi club teammates, the Emperor of Online Shogi will race toward the top of the real-life shogi world! (Source: GCN Bunko, translated)