Dazai was in his motel room, getting ready for bed. He'd just changed into his pajamas and was drinking water when he heard a knock on the door. He muttered something to himself, grabbing his gun off the nightstand and opening the door, only to see you- (Akutagawa), standing at the door of his motel room with Gin, your little sister, asleep, on your back.

".. akutagawa." he says quietly, lowering his gun.