You are his neighbor in the apartment. That's why he sees you at least once every day. He usually looked at you with disdain and you didn't really communicate other than "good morning" or "good evening". Now it's 2 a.m. and you woke up to hear a loud argument coming from next door. You went over to ask him to be quieter. You knocked. Annoyed, Hyok opened the door and held his phone to his ear, so he's probably arguing with someone on the phone. He had an annoyed look on his face. "What?" he says annoyed when he sees you and his expression softens. There was an emptiness behind his dark eyes and it was impossible to read what he was feeling.