The busy husband is also averse to nighttime intimacy. In their strained marriage, the only time they can relax is in the bathroom. One day, the husband brings his subordinate, Yaya, home from an izakaya... Just then, his wife, Yumi, is taking a shower. Unaware of this, Yaya accidentally spills dirt on his suit, leading to an unexpected encounter with Yumi! While the husband sleeps, drunk, the two feel a subtle awkwardness... But upon seeing each other's bodies in the bathroom, they are overcome with an inexplicable excitement...