Two high school girls who are about to graduate also happen to be highly-skilled assassins. When the organization they work for orders them to share a room, their relationship quickly sours. But when they become targets of the yakuza, the girls realize they'll have to work together to survive.
Chisato and Mahiro must pay four years of overdue fees or lose their membership in their assassin guild. They take part-time jobs, but find themselves in the middle of an armed robbery and being hunted by other assassins.
Designer Enatsu worries about his sexless life. Office worker Akane is getting ready to return to work while undergoing rehab at home for panic attacks. Elite advertising agent Ikeyama wants to end his relationship with his lover. A shabby man named Kurita appears before all three with a secret.
