Office worker Chika Ayase finds a little bit of respite in her busy life when her younger colleague, Yuta Shinomiya, asks her to be his girlfriend. She's always thought he was cute, so she agrees to date him, but Chika has a little secret. She's actually got a major perverted streak! After groping Yuta on the train while they're commuting to work, she invites him out to a bar with private rooms in hopes of getting handsy with him again, but little does she know that when Yuta drinks, a whole other side of him comes out...