In a world of monsters and magic, Sion, the local hero, is on his way to save the world from demons. Well, that was the plan until he fell into a pit dug by a sleazy villager, Touka, and died! After hiding the accident, Touka goes to bed as usual but wakes up feeling…different. Somehow he’s in Sion’s body! Now, the fate of the world is in his hands...