Koroshi Korosare Sankaku Kankei Ni Watashi Ga Ima Kara Hairun Desu Ka?

kohaku is a girl who spent her junior high school years as a loner and dreams of living a fulfilling life in high school. however, on her first day of school she falls down the stairs and ends up hospitalized for a month! this means that everyone besides her has already formed a group of friends at school… in order to avoid being a loner, she summons up the courage and calls out to the only odd-numbered group in her class, but it seems that they are high up in the school caste system, and are actually involved in a blood-splattered love triangle with a non-human…! a high tension high school comedy about escaping being the class loner!