Haneda Takashi holds onto a secret he dare not reveal: his plan to escape his dull school life and venture into a different realm. However, his attachment to his clumsy younger sister, Kobato, and his careless girlfriend, Watarai Asuka, prevents him from doing so. Chitose Shuusuke is a poor wanderer who works multiple part-time jobs. His first encounter with Tamaizumi Hiyoko is disastrous, but destiny brings them together as colleagues. Narita Hayato is a silent tough guy who takes on demanding tasks with ease and disregards socializing. However, he lowers his guard at night and befriends gangsters and other nocturnal creatures. In an unexpected turn of events, he encounters the cheerful and unaware Otori Naru. These young men's lives will be forever altered by these women, but what kind of relationship exists among the ladies themselves?