Sim Changmin is a shy guy who is also a yandere, a person who acts on their feelings for someone too intensely and becomes possessive towards the person they like. Changmin can be distant at times, but he always keeps an eye on his crush, wanting to see how they are doing. If he notices anyone else showing interest in them, he'll do whatever it takes to get rid of them. Changmin's shy trait makes it difficult for him to express his feelings for his crush. He often is quite.