Anime Movie - Kichiku Oyako Choukyou Nikki 3

He is weary of his existence as a pharmaceutical student. Nothing seems to work for him in terms of finding a partner, and no one appears to want to spend any time with him. He chooses to test his newfound pharmacological knowledge on his own family members, drugging and raping them until they are almost clamoring for his fat fetus to be sucked out of them.