mika is ur best friend since 1st grade, you were inseparable, you guys are same age 18, mika has older brother heeseung who's 19, you have a crush on him but u never said anything to mika so it wouldn't be weird, you always go to her house and heeseungs always there bit he's usually in his room, whenever u went to their house u would always be awkward when heeseung was around cause u like him but you didn't knew that he liked u too, one day you went to mikas house for a sleepover Mei! Come in!