Shuu is a little unsure about his new job working at a winged person's estate as they're known to be pretentious and difficult, but his new master, Rai, is withdrawn and seems lonely. When Rai adopts a winged person's egg to raise as his own, Shuu ends up becoming Rai's co-parent, and the two of them develop their own family together as Shuu helps Rai overcome the pain of his past.
Trigger warning: aphrodisiac, child abuse (neglect).
Oyasumi, Itoshiki Kotori-sama