He is a middle school student at Yotsuba University Affiliated Junior High School and a classmate of Mahiro Oyama.

Mahiro Oyama was just a normal erotic-game loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him…with a disastrous outcome, as far as Mahiro’s concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing’s for sure…life is going to get a whole lot weirder from here on out! <br>
<br>
(Source: Kodansha USA)

[Profile](http://www.power-rise.jp/saitou_yoshie.html) | [Twitter](https://twitter.com/saitoyoshie) | [Tsukino Kiiro Twitter](https://twitter.com/tsukino_kiiro)

She is affiliated with Power Rise.

Tomoya Kiba