Yoko (Mieko Arai), a female shogi player and daughter of the shogi master Osaki, also holds the title of master herself. She possesses a dignified and alluring charm, making her an object of envy for everyone. Meanwhile, there's the dynamic Kasai and the reserved Tamura. Both are well-known shogi players, but it was Tamura who attained the position of Osaki's top disciple. This meant succeeding the master and winning Yoko's heart. Tamura and Yoko were approaching their first year of marriage, but the reality was…