Usui, crown prince of Sun Kingdom, is the most handsome and the strongest prince in the kingdom. He gets pressured to get married, which eventually leads to him partic.i.p.ate in the compet.i.ton for the hand of Princess Hazel , who is known as the Beauty of Crystal Kingdom. On reaching Crystal Kingdom, Usui came across a masked warrior girl which piqued his interest. On one hand, there 's this...