Where is hope? A modern cruelty story begins. Endo Minami lost her parents at a young age. She turns to her older brother Kenta, whom she separated from at a young age. As she starts a new life with her much older brother, Minami's sadness over losing her parents gradually Minami. Just when it seems that the two siblings will continue to live peaceful days, Okabe Satoru, an acquaintance of her brother, appears. His malice corrodes and destroys the daily lives of the two.