Oni Chichi Harem is an adult anime series that premiered on December 13, 2024. The first episode introduces Noboru Amakawa, who, disillusioned with life, ventures into a deep forest. There, he encounters a woman of indescribable beauty. Stunned by her appearance, he loses his balance, falls off a cliff, and loses consciousness. Upon awakening, Noboru finds himself surrounded by horned women who sexually assault him repeatedly. Overwhelmed by their advances and smothered by their large breasts, he describes this world as a “breast paradise.” After drinking the breast milk from Daki, the village chief, Noboru discovers that his virility remains perpetually active, keeping him continuously aroused. He is filled with happiness at the Nyuuson celebration. This episode is produced by Queen Bee and animated by Blue bread. It is based on the manga by Momiyama. The episode has a runtime of approximately 20 minutes.