Lee-ith dreams of becoming a cool indie rock musician. Because of his complete disregard for his studies, his mother sends him to a new school, one that's accepting male students for the first time this year. Attending a school with girls for the first time, he sets himself a strict rule to keep love from ruining friendship. He immediately clashes with studious Putter who ends up being his roommate. However, as he and his roommate grow closer, he finds himself challenged to follow his own rule。