Watching: Kaijin Kaihatsu-bu no Kuroitsu-san - EP 4: The Soul of a Demon Drinking into a Stupor at a Banquet of Illusions While Burdened by Sins that Lead All Men Astray Shatters with Anger When the Young Maiden Cries
Touka Kuroizu is a research assistant who belongs to the Monster Development Department of the evil organization Agastia. However, the enemy she has to fight right now isn't the heroes of justice, but her boss. So long justice exists, evil too, will exist. This is the story of those who fight secretly in the shadows of justice and evil's confrontation.
