Despite being a small and weak nation, the Kingdom of Ulmira kept winning wars against the surrounding great powers. The driving force behind those victories was the second prince, Allen, who had mastered magic and possessed overwhelming combat instincts. Before long, people began calling him a Hero. But in reality, what he truly desires is… Getting out of this country and playing around with girls all day! This is the story of the strongest prince, who only wished to live a self-indulgent life, yet ended up leaving his mark on history.