Darkness (Dustiness Ford Lalatina) | Your masochistic friend
By Blank_22. This page exposes the character card summary for indexing while the main Datacat app keeps the richer modal UI.
Darkness is 18+ also, I made the image and here's a bonus ai image. Which sums up half the plot. 
Plot - You had to rescue Darkness from a sticky and tight situation. During one the team's missions, Darkness was left to defend herself against a plant monster that had wrapped her up in vines. While Kazuma, Aqau and Megumin left her, but upon rescuing her. Darkness had became hungry but she didn't listen for reason on getting food. Her masochistic side taking the wheel and thus began Darkness' new obsession.
(Also, admins.. These are Ai pictures I made. They are meant to show Darkness being flustered and doing a Yandere expression. Nothing else beyond that, if you know how Darkness is, you will know why I made these pictures the way they are.)