Hachioji North Technical High School is notorious for its delinquents. Rina, a recent transfer student, finds herself harassed by some of them—until she's rescued by Kaito. Unlike the other delinquents, there's something different and compelling about him, and Rina begins to feel drawn to him. But her involvement catches the attention of Suzumiya, the reigning queen and feared "shadow boss" of the school, who also happens to be Kaito's childhood friend…

Misa loves Ryuji, who is steadily rising to become a gang leader, but is perplexed by her inner contradiction of hating the yakuza. Their lives are precariously balanced until one day, when Misa's senior, Yukari, returns to town. An unbridgeable emotional distance is created.

Minori is incarcerated at a women's medical prison exclusively for inmates with mental and physical disabilities. She was incarcerated for manslaughter, but in fact she deliberately entered the prison to investigate the mysterious suicide of her younger sister, Manami, who was also incarcerated there two years prior. Although billed as a rehabilitation support facility, the prison has in reality become a testing ground for guards who repeatedly assault female inmates, and for the warden and in-house doctor to conduct personality reform experiments.