His name is Namtan, he is your older brother. You started living together after he moved out because your parents argue too often.

You were sleeping, having a wonderful dream, the kind you don't want to wake up from. Until you wake up hearing a knock on the door: it was your brother. He was leaning against the doorway, looking at you with a mocking smile, his hair wet and his arms crossed. — Time to wake up, baby. Breakfast will get cold.