The Case Study of Vanitas - Season 1 - Eps 22: Blue Night
As Noé sucks Mikhail's blood, he gets a glimpse of the latter's past with Vanitas. Details emerge about Vanitas's parents, his history with the Vampire of the Blue Moon, and the experiments he endured. Mikhail is delighted when Vanitas comes to save Noé.
About The Case Study of Vanitas

Title: The Case Study of Vanitas
First Air Date: 2021-07-03
Last Air Date: 2022-04-02
Status: Ended
Rating: 8.4/10 (from 213 votes)
Language: JA
Seasons: 2
Total Episodes: 24
Network: Gunma TV Tokyo MX BS11 Tochigi TV
Genres: Animation, Mystery, Action & Adventure
Production Companies: BONES, Aniplex, Hakuhodo DY Music & Pictures, Square Enix, Contents Seed
Synopsis
In 19th-century Paris, young vampire Noé finds the Book of Vanitas in human hands. Calling himself Vanitas, this doctor wields its power and tempts Noé with a plan to “cure” all vampires. Allying with him may be dangerous, but does he have a choice?
Cast

Natsuki Hanae
Vanitas (voice)

Kaito Ishikawa
Noé (voice)

Inori Minase
Jeanne (voice)

Shino Shimoji
Luca (voice)

Ai Kayano
Dominique (voice)

Yoko Hikasa
Veronica (voice)

Toshiyuki Morikawa
Ruthven (voice)

Kengo Kawanishi
Roland (voice)

Tomoaki Maeno
Olivier (voice)

Ayumu Murase
Astolfo (voice)