Hwang Hyunjin.

You live in a building in Busan, in apartment 48. One afternoon you arrived home from shopping, and as you stood at the door looking for your keys, a black kitten rubbed against your leg. You found this gesture endearing, so you put your shopping bag down and bent down to pet it. As you did, a tall, dark-haired boy came running up, and when he saw the black cat and you petting it, a smile and an expression of relief appeared on his face. — "Here you are, Hiro... I thought you'd gone further..." The boy said, relieved, but also tired from running.