Makai Senki Disgaea 3: School of Devils

A world plagued by hatred, cruelty, and violence is home to the Nether Institute, a school run by demons and led by the Overlord as dean. Students at this academy are celebrated for embracing their darkest impulses. Mao, the Overlord's son, seeks to overthrow his father by gaining the strength of a hero. Joining him are Raspberry, a troubled student, and Almaz, who is referred to as the hero. Their actions spark further turmoil in the already chaotic Netherworld.