Itsuka Shidou arose on April 10th to commence school after the spring break. To his surprise, fate had other plans for him as he encountered a young woman proclaiming to be a spirit. Subsequently, the town was shattered by an unanticipated shock, and the same girl appeared before Shidou, inquiring if he was present to murder her. She had gained notoriety as a monster and was shunned by society, yet Shidou's sister proposed that he go out with her to put an end to her afflictions. Although surprised, Shidou was undeniably about to embark on a new journey of boy meets girl.