In this prestigious school, warped by verbal abuse, dehumanization, and academic discrimination, an underclassman suddenly reaches out to me. With dyed highlights beneath her black hair and a mischievous smile, she introduces herself as Kurumi Hoshimiya and forces me to take her hand. Kurumi involves me in her schemes, making me join her two-person resistance movement to tear down the school. Alone in an empty clubroom after class, we plot terrorism and indulge in improper relations, committing sins, exchanging kisses, and descending into depravity. Abandon right and wrong. Stop chasing grades. Rebel against the grown-ups. These are our recommendations for bad children.