Prince Ike sets out on a solo mission to vanquish the feared Demon King of Mano, only to be swiftly overpowered by the king's loyal followers. Determined to secure his victory and reputation, Ike relentlessly pursues the elusive Demon King, who surprisingly shows concern for him and harbors a deep appreciation for flora. As their unusual bond grows, Ike finds himself unexpectedly drawn to the enigmatic Demon King, leading to unforeseen complications in their relationship.