Magical Beautiful Boys

A high school student named Qu Le lived an ordinary life until fate intertwine its mysterious creatures called "sky whale" which changes his life completely. "I signed a contract to become a magical beautiful boy!" -- It was a contract that he signed off to become a magician to fight off monsters. The only twist was that when he transformed, his outfit is a female clothing. What will happen in this magical girl's storyline when it's reversed to male characters? Source: MU