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The perfect family.

A 2009 hentai anime based on a visual novel of the same name.

Kouzou Akizuki seems like a normal common man. But secretly he desires the bodies of young girls, including his stepdaughters. Being a very smart individual, he creates a spray containing a substance that makes girls feel lust towards him. Without remorse, he uses his victims as his personal sex slaves.

Tropes used in Oni Chichi include:
  • Abusive Parents: Considering he drugs his stepdaughters in order to rape them, Kouzou more than qualifies for this trope.
  • Asshole Victim: Airi constantly treats her stepfather badly, so it is difficult to feel sorry for her, when he decides to avenge.
  • Love Potion: One in format of spray, that seems to make the targets horny almost instantly and attracted specifically towards Kouzou, though they can still show signals of resistance.
  • Mad Scientist: Kouzou is a scientist that creates a love potion and uses them to rape and brainwash his stepdaughters.
  • Making Love in All the Wrong Places: Kouzou and Airi have sex inside her school(where he works too) in several places.
  • Properly Paranoid: Airi accused her stepfather of being a pervert, despite not having any real proof, but ends up being right.
  • Rapunzel Hair: Airi's hair is ridiculously long.
  • Victim Falls For Rapist: With repeated uses of the spray, the victims begin to develop feelings of love and even jealously towards Kouzou.
  • Villain Protagonist: Kouzou in the visual novel.
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