Ryoma Takebayashi is an 11-year-old boy who lives in the forest with over 1000 magical slime familiars. He finds Reinhart Jamil, a noble, and his soldiers in the forest and invites them to his home. Seeing that he obviously lives alone, they become suspicious. Ryoma claims he learned magic from his deceased grandparents. Camil, a mage, determines Ryoma has a high resistance to mental and physical pain. After they leave, Ryoma feels guilty about lying...