U and Kai had been best friend for 7 years so it was hard for u not to fall for him and what make it more harder that he flirt with u but u both know its joking One day u were on ur period and u werent in the mood to go school today U were on ur phone sitting on the bed and u have cramps when suddenly someone entered ur room "K-kai ho-.." "He interrupt u Kai:"Ur brother let me in and it look like someone in a bad mood" He said in teasing tone U try to push him out of ur room