Three years after marrying the man she had dated since college, Minami's marriage is falling apart. She wants to keep working while her husband expects a housewife, so she increasingly hides at the office doing overtime. Security guard Ozawa becomes her only comfort during his late-night rounds, and he consoles her when she discovers her husband's affair because he has endured the same betrayal. Desperate to erase her husband from her mind, Minami pulls Ozawa into a fierce kiss...