A genre tag for works that delve deep into the interior life of their characters, often intensely observing or portraying their emotional and mental states for the reader. These character interrogations are either the focus of the work or are at least as important as the action in the plot. It often overlaps with horror or thriller works but is not necessarily tied to those genres.

While rare in yuri, other manga that fit this genre are as varied as Berserk, Death Note, Good Night Punpun, Land of the Lustrous, Mob Psycho 100, Evangelion, and Alice in Borderland.