The Case Study of Vanitas (2021)

S1E2 In the City of Flowers

Vanitas and Noé find themselves in a tough situation when an invitation comes their way. Upon arriving at their benefactor's place, they learn they must demonstrate that the "Book of Vanitas" has the power to restore a vampire's true name. As they work to obtain the required evidence, they unexpectedly cross paths with another individual who is also after the book.