Masaya is a university student, but he attends a school that’s not his ideal school. His days are generally gloomy. One day, he receives a letter from serial killer Haimura….

Keisuke Isobe and Koume Satou live a rather dull life. But when Koume’s crush breaks her heart, their situation becomes quite unordinary. She starts a “no-strings-attached” relationship with Keisuke, whom…