Its deep, rich lore and constant, not-clickbait, smooth, condescending plot twists that Jun Mochizuki is famously known for. And as someone who had watched the Pandora Hearts adaptation and felt somewhat burned by the last stretch (go read the manga, it's literally better), I'd say that how Vanitas started out (at least for the 1st half here) made me remember how much I initially love about Pandora Hearts in both AniManga forms in
Make no mistake, if there's anything of the next big thing for hardcore fans of Jun Mochizuki to receive an anime adaptation of her immaculate work that properly does its translation onto the small screen well, we finally got it in 'Vanitas no Carte' (a.k.a The Case Study of Vanitas).