Inkou Kyoushi no Sai* Seikatsu Shidouroku

What happens when a high school teacher gets his hands on a supernatural notebook that lets him write a person's name and an action — and they just do it, no questions asked? That's the premise of this 2-episode OVA from studio T-Rex, and it leans hard into how dark that power trip can get. Fukama is not a likable protagonist. He's sleazy, calculating, and fully aware of what he's doing — using the Sex Life Guidance Notebook to manipulate female students while their actual partners remain completely in the dark. The show doesn't dress it up as anything other than what it is: a man exploiting a supernatural loophole to get what he wants, episode by episode. The animation holds up decently for a short OVA run, and T-Rex keeps things visually consistent throughout. If you've watched Saimin Seishidou or Kyonyuu Onna Senshi Dogeza Saimin and you're into the hypnosis-and-control subgenre, this hits similar notes — the notebook gimmick gives it a slightly more grounded supernatural hook compared to straight mind-control setups. It's closer in tone to Ero Ishi in how it frames the power imbalance between authority figures and younger characters. Two episodes means it doesn't overstay its welcome. It establishes its premise, does what it came to do, and wraps up without dragging. If that particular corner of hentai interests you, it's a compact, functional entry in the genre.