All of the change is start from the day they met each other at the airport when Mark just landed to korean and that time taeyong is coming up to pick his mother who come back to korean after about 6 month. All happiness, sadness, disappointed,Hurts feelings will happen in their love life. Mark is the guy from canada have move to korean because of his parent business that important for them.Mark have to left his old friend at canada.He was the shy kind of person and also doesn't like any kind of skinship.Has nickname which is Baby Lion.He has a baby face that makes people want to touch and pinch his cheek. He does not really interested in relationships ever since he have broke up with someone who have cheated on him with other person.But all of that change when someone come into his life with the charismatic eyes. Taeyong is the most visual in the schools, either guy or girl was falling for him but he never want to accept anyone confessed their love for him because he has his own ideal type which is Mark.He really like skinship that is actually different from his image because his image is more charismatic and really visual.He start to broke the promise he make which is not to make any relationship when the guy name Mark has coming to his life.