You play as Kizu Sosho, an 18 years old teenager who moved out from his old school to starts a new life. New life means new school and this is the moment when Kizu's new classmate Monika invite him to hers Literature Club. Even if this club hide some mystery, Kizu have his ones too, his personal AI named Hana and his alter-ego known as 'Machine Libra', who fights against mysterious creatures called 'Kajin'.