Oyasumi, Itoshii Kotori-sama

A human named Shuu takes a job at a manor inhabited by winged beings, despite his dislike for their arrogance. There, he encounters Rai, a winged individual known for being difficult. Shuu is unexpectedly placed in a strange situation when Rai informs him he must "incubate the egg." The story explores the evolving relationship between the two as they navigate this unusual arrangement in a society where humans and winged people live together. An additional chapter is included.