Kim Heyne is the younger sister of EXO Suho. They are very close and she was hurt when Suho had to go to SM. She missed him but all she can do now is to support his group. Then one day, Suho came home telling Heyne that she is going to stay with them. Of course she accepted it because she missed her brother but there are times when she regretted it. What's will happen to Heyne if people know that she stays with Exo? Then read it to find out!