Critics' initial response to Vanitas was favorable.
The Fandom Post praised his heroic personality, while
Manga News and El Palomitrón found his characterization good and comical.
The Fandom Post found the early fight scenes of the series the most appealing parts because of Vanitas' unpredictability, especially when dealing with Jeanne.
Bleeding Cool noted while Noé appears to have more respect from the cast, Vanitas prefers the idea of being a loner who is hated by society.
Bleeding Cool found the season's climax depicting Vanitas' true past tragic and powerful because it affects the relationship between the two protagonists, who initially fight until Vanitas finds himself unable to kill Noé.
Anime Feminist called the character "peak trash" while other reviewers enjoyed his dynamic with Noé. In another parallel with
Fullmetal Alchemist,
Comic Book Resources noticed Vanitas is seen disturbed for the first time in the narrative when failing to save a vampire from a curse in a similar pattern to Edward becoming shocked with the transformation of Nina Tucker and her dog into a chimera.
Anime News Network said the revelation of Vanitas' connection with Doctor Moreau makes the character more vulnerable than anticipated; when meeting his torturer again, Vanitas' personality drastically changes, giving him
survivor's guilt and relying far more on Noé.
Manga News praised the handling of Vanitas through his tragic backstory and his apparently fated duel with Noé. Several reviewers focused on Vanitas' relationship with the vampire Jeanne. Vanitas forcing a kiss with her was criticized as being inappropriate as comedy.
The Fandom Post found the delivery in the anime entertaining. Caitlin Moore from
Anime News Network listed the handling of vampirism between Jeanne and Vanitas, and between Dominique and Noé, as the best moment in anime that year due to the amount of sex appeal the characters portray. The character of Vanitas was popular in Anitrendz; Vanitas and Jeanne were nominated in the couple category.
Anime Feminist enjoyed Natsuki Hanae's work, calling his characterization enjoyable and said he gives hidden depths to a difficult past. Vanitas' French actor Brieuc Lemaire was also a nominee for the
6th Crunchyroll Anime Awards. Vanitas wears an earring that looks like an hourglass. Upon first seeing it, writer
Deko Akao believed the earring has a history, which was confirmed upon further seeing Vanitas' past depicted in the manga. Anime News Network stated the earring reflects Vanitas' mortality and short lifespan, which the reviewer inferred as the message the author wanted to portray. Artur Lozano Mendez from
Autonomous University of Barcelona referred to Vanitas and Noah from as
yasaotoko archetypes, with the former standing out as a technical hero with healing abilities not commonly seen in the male demography in contrast to the latter who comes across a weaker type of hero. He noted that Vanitas stands out as a protagonist for the way he interacts with other female characters. While Vanitas at first is portrayed as they started to form a relationship by stealing Jeanne's kiss, in the next scenes it is Jeanne who becomes more active in growing relationship comparable to those of
shojo manga instead despite the actual male oriented demography. Despite Vanitas toying with Jeanne, it was noted that Vanitas eventually cared for her. ==References==