Journal of the Mysterious Creatures

, also called "The Record of Unusual Creatures", is a Chinese web novel by Yuǎn Tóng (远瞳) published online on Qidian Web (起点中文网). An anime ONA series adaptation was uploaded by Bilibili while the Japanese version co-produced by Bilibili and MAGES. begun airing on July 2020 on BS Fuji.

Plot
Yoshihito is a 23-year-old man with no occupation or girlfriend. In order to make ends meet he rents out one of the rooms in his house. While he's showing Lily, his first tenant, around the house, she's suddenly attacked by a vampire named Vivian, and Yoshihito notices that Lily is actually a werewolf. As Yoshihito and Lily start living in the same house, Yoshihito is scouted for an organization that maintains order of the parallel universes, and strange creatures one after another become tenants in his house.

Official

 * Official anime website (in Japanese)

Other Sources

 * Novel
 * Novel Updates - The Record of Unusual Creatures by Yuan Tong
 * Anime