Kouka's father, Kosaka, was a professional shogi player obsessed with money and women, and met a brutal death. Despite her mother's objections, she became obsessed with the greedy path of shogi, greedily seeking victory. But she is taught the ways of shogi and women by an erotic shogi player.
| Actor | Role |
|---|---|
 Ayaka TomodaNot listed | Not listed |
| TTakaaki IwaoNot listed | Not listed |
| YYosuke MinokawaNot listed | Not listed |
| NNami YuasaNot listed | Not listed |