Mangetsu no Ou

Amano works in a hotel that caters to visitors from the other realm. When Tsukiyomi, the king of the other realm visits the hotel, Amano discovers the truth behind the disappearance of his childhood friend, Mitsuki. Refer to [Kyokuya](https://mangadex.org/title/ee1c0514-3bac-4694-8020-05fec5a34b33/kyokuya) for first 4 chapters.