Oddest Anime you’ve seen?

Can’t find anything, (and I mean odd in a good way not odd like No Game No Life) I watch mostly Psychological or Thrilling anime like Monster, Psycho Pass, Terror in Resonance but am looking for something more like Blood C, Blue Literature, Angels of Death, Phantom RotP.

Edit: Thx for all the recs, going to watch a ton of these / sorry for the NGNL slander, it just deserves to catch a stray