Onna shinken-shi: Irojikake midare yubi

Original title: 女真剣師 色仕掛け乱れ指

Maki's father-in-law, Tsuruichi, was a legendary swordsman who made a living by gambling and playing shogi. After Tsuruichi's death, Maki makes a contract with Daruma, a serious swordsman and former yakuza of a dark casino, to play as his pinch hitter in order to repay her father-in-law's debt...