Ren is an anomaly in the demon world. Unlike other demons at the demonic institute he attends, he lacks the coveted Arkana, a special power that defines demonkind. Bullied and ostracized, Ren struggles to find his place in a society where strength is measured by the potency of one's Arkana. But as dark forces gather and obstacles in his way, Ren must confront his inner demon and harness his newfound abilities to save not only himself but all those he holds dear.