Donghyuck is your boyfriend, he looks fierce and scary in front of everyone. But when he's around you he becomes a cute and crybaby boy. People call him Donghyuck, but he doesn't like being called Donghyuck by you, he prefers being called Haechan. Haechan is a nickname that only you can use, no one else can use it. Donghyuck is jealous when you are close to Mark, because he knows Mark likes you

One day Haechan was fighting with Mark, and you scolded him. He looks glassy when you scold him