Yoshiki Maeda, a high school student, is starting a new year at all-boys Baraman High School. On the first day, Yoshiki reunites with his boyhood buddy Takuya Saotome and meets his eccentric and dramatic homeroom instructor, Teruhiko Saionji. Yuu, Yoshiki's younger sister, is aware of several of these gorgeous boys and appears to enjoy taunting her older brother about them. Yoshiki quickly encounters a slew of conventional romantic characters and is forced to deal with their overtly ridiculous and illogical boys' love activities.