Shachi Yuuri and Nora Handa were raised together as siblings after Shachi was adopted by Nora's mother upon their biological parents' passing. Despite their tragic loss, the love and care they received allowed them to thrive. Shachi harbored romantic feelings for Nora and would wake him up each morning. Nora's student life was comfortable and surrounded by his friends, including the disciplined Michi Kuroki and kind childhood friend Yuuki Asuhara. One day, Nora met Patricia in the park. She claimed to be the queen of Hell and had been tasked with destroying all life on Earth, but her powers had weakened due to the new world's energy. Nora tended to her injuries, and in exchange, Patricia asked him to teach her about the mysteries of life. Nora even had to explain an explicit book he found in the park to her – it was unbelievable!