Iroha, the young wife who loves sex and lives with her husband's father-in-law, craves slow, passionate sex and isn't satisfied with rough, youthful encounters. This insatiable, always-horny Iroha seduces her cohabiting father-in-law and has sex with him behind her husband's back. One day, a former boss from Iroha's old company suddenly shows up and confesses his feelings, pressuring her.
