Meet Kizu Sosho - an 18 year old teenager who is a son of a world famous scientist. After traumatic events, he decided to run away from his problems and start a new life. As a result, he joined the Literature Club, where he met his new neighbor: Sayori. Kizu hides one secret from the world: his alter ego, Machine Libra. As Machine Libra, he was able to help Monika make peace with her friends. But Sayori is scared of him and Machine Libra. Now, Kizu needs to stop the Kajins once and for all, to make peace with Sayori.