|Hair||Unknown (Blonde or White)|
|Manga Debut||Memoire 3: The Hellfire Witch|
Johann is a Dhampir from Jun Mochizuki's The Case Study of Vanitas who acts as an information broker and associate of Dante and Riche's. Having looked into the case of Thomas Berneux alongside his associates, Johann discovered that Lord Ruthven's Bourreau - Jeanne the Hellfire Witch - had arrived in Paris and that she was after Vanitas. Johann warned Dante of this, but by then it was already too late, as Dante had sent Riche to draw out Berneux for Vanitas and Noé Archiviste to intercept. Johann and Dante then eventually caught up with Riche in time to witness Vanitas handle the situation with Jeanne. Shortly thereafter however, Johann, Dante and Riche looked into another case involving a Curse-Bearer - only to encounter a member of The Chasseur instead - who proceeded to battle the three and kidnap the Curse-Bearer.
Johann typically displays a flamboyant personality, characterized by his often animated facial expressions and a teasing and flirtatious manner of speech. He is physically affectionate and has a tendency of brushing against people or wrapping his arm around them when talking. He rarely depicts any type of seriousness, even when fretting over Riche or offering warnings.
Parisian Excursion Arc Edit
Johann meets with Dante on a rooftop immediately after the latter sends Vanitas and Noé Archiviste off with one of the information brokers' bats. Having seen Vanitas for the first time, he notes that the vampire doctor had a "dishy" face before revealing the true purpose of his appearance: information that Lord Ruthven's bourreau was in Paris. Teasing Dante, Johann surmises that they are after the Book of Vanitas and that that Vanitas might be killed.
Later, when Johann learned that another information broker, Riche, had chased after the murderous vampire, Thomas Berneux, he anxiously berated Dante for allowing her to do something so dangerous and followed after her to where the three would witness the battle between the Jeanne, Noé, and Vanitas.
Hunters of the Darks Arc Edit
Return of the Beast Arc Edit
Powers and Abilities Edit
Johann and Dante are fellow information brokers. Johann brings Dante information he thinks the other may find useful, and the two, along with Riche, often work together to chase after leads.
Johann frets over Riche and her safety, especially because he believes she endangers herself for Dante. His overprotective feelings towards her is met with scorn by Dante, who believes she can take care of herself.
- Though it is as of yet unknown what the true connection between Johann and Dante is, it would appear that their identical uniforms implies that the two are part of a greater organization.