My Kitty Yunlan (One Shot)

Yunlan an ordinary highschool student with a beaitiful twin sister Yaquing. The two was so close that Yunlan would do anything for his sister. What if Yaquing got in trouble with a college student Shen Wei who wanted to date her. Shen Wei a rich kid who control their school and his father own it as well. Yaquing beg to Yunlan to replace her since they both look alike only his a guy. And Yaquing have already have a boyfriend. Will Yunlan be willing disguise himself to save his sister chastity? What will happened if Shen Wei found out he gave his love to a guy instead?