Inkou Kyoushi no Sai* Seikatsu Shidouroku
Oshimeter
Synopsis
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.
Episode Guide
Characters
Yayoi Tachibana
A high school student and tea ceremony master's daughter, Yayoi defies school rules, often forgoing undergarments with her kimono, and is engaged to her teacher.
Isshiki Mayu
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the pacing felt a bit fast but that ending where she just forgets her old feelings is the kind of dark stuff you expect from this series
I got chills when fukama started writing in that book and the animation during the hypnosis scenes was way better than the first episode and it really sold the trance
The way Yayoi looked at her boyfriend right before Fukama stepped in was heartbreaking, especially knowing what that book was about to do to her life.
seeing yayoi struggle against the notebook only to give in was rough and the art style really captured how much she lost herself in the moment
I actually felt bad for Yayoi and the way Fukama just completely took over her mind was super uncomfortable and that notebook is straight up evil
this yayoi arc really focused on the psychological side of the book and seeing her mind just break during the guidance session was intense
that teacher being so old and disgusting makes the whole thing feel way more wrong and the way yayoi just obeys is just a lot to handle
The animation during the office scene was solid, and Yayoi had some of the best expressions so far in this series
it always gets me when they show the girl forgetting her actual boyfriend and i think yayoi was way too innocent for someone as gross as fukama
watching the teacher use that sex life guidance notebook to ruin yayoi like that is dark and he is way more of a villain than the guys in other shows
those glowing eyes when the hypnosis kicks in look really well done and the way she just follows every single order is crazy
yayoi looked so lost when the book actually started working and i feel bad for her boyfriend because he has zero clue what fukama is doing to her right now
I thought the first episode was bad but this one with Yayoi really turned it up a notch. The way she tries to resist the notebook commands at first only to completely give in was rough to watch, especially since she clearly liked the other guy. Fukama is such a creep but the art style for these scenes is surprisingly detailed and fluid
poor guy is just waiting for yayoi while she is stuck in the teachers office with fukama and his magic book is just brutal
fukama is actually the worst person ever and seeing him write in that notebook makes the skin crawl but the animation for yayoi was actually pretty good
That notebook is way too powerful and Fukama is definitely getting bolder with his requests now that he knows Yayoi can't fight back against the commands he writes down
I wasn't expecting the NTR stuff to get this heavy so quickly, especially with how sweet Yayoi seemed at the start of the episode. Seeing her boyfriend just standing there while Fukama had his way with her was pretty brutal and the art style really captures how uncomfortable the whole situation is for the characters involved in the hypnosis and the way she loses her spark is sad
Seeing Fukama smirk while Yayoi was doing exactly what he wrote down made me want to jump into the screen and punch him because he is the absolute worst
The way Yayoi just completely changed her personality once her name was in that book felt so wrong and the animation during the classroom scene was surprisingly detailed for this kind of show
I really felt bad for Yayoi's boyfriend when he saw her with Fukama and just didn't realize what was happening because that teacher is actually a monster for using that notebook like that
Inkou Kyoushi no Sai* Seikatsu Shidouroku
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