Nympho Maman Oyako Soukan: Mama no Shikyuu wa Boku no Mono

Shinichi, unable to control his twisted sexual desire for his overly beautiful mother, Mihori, obtains a suspicious drug and sets a trap for her. As intended, Shinichi succeeds in turning his mother into a toy, but the people around him begin to notice something strange about the two of them. And everyone who comes close to their suspicions is caught up in their murky desires.

(Source: Leed Publishing)