Zetsubou no Kaibutsu
English name: Despair of the Monster
Genres: Drama, Horror
Type: Movie, Episodes: 1
Aired: Jun 10, 2019
Source: Original
Rating: R - 17+ (violence & profanity)
Synopsis:
A story about fourteen-year-old alien girl Aoi Hoshino. Her family uses certain medicine to disguise themselves as humans.
For some reason the medicine slowly stops working, but only on Aoi...

(Source: Official Website, edited)