Nora Handa, raised alongside Shachi Yuuri after being adopted by his mother, enjoys a nurturing environment despite their parents' absence. Shachi, particularly fond of Nora, rouses him from slumber each day. Amidst a circle of supportive friends including the disciplined Michi Kuroki, the bubbly and empathetic Yuuki Asuhara, and other schoolmates, Nora relishes his school days. A chance encounter with a self-proclaimed queen of hell, Patricia, alters Nora's routine. Though intent on disrupting earthly life, Patricia's exposure to its vibrancy weakens her. Nora, compelled to aid her, delves into the enigmatic facets of existence, even divulging the discovery of a risqué book in the park. What unfolds next challenges Nora's perception of the world and those around him.