Why do you run away? My summoned beast is very cute!

Synopsis

Happy, whom Heresy summoned when he was little, is actually a sweet, kind-hearted girl. ──Even if her looks are a tiny bit grotesque! At the Summoner Academy, Heresy is treated like a total anomaly. Even though he's just trying to act "normal," he keeps unknowingly getting dragged into some absolutely insane situations...!?