Park Hyerin is exo Park Chanyeol's little sister and she is married to Exo Kim Junmyeon but he is a cheater because he only love sulli and when they separated but not divorce chanyeol said to hyerin that he will fullfil all the moments that suho left and as a brother he will take care of her and she and suho separated but what if suho fell for her.Read to find out.