History Manga / OnimaiImNowYourSister

%%* YuriFan: Miyo Murosaki, another of Momiji's classmates is very much this.

* YuriFan: Miyo Murosaki, another of Momiji's classmates is very much this.

** In episode 9, Asahi wears a green jacket and a white mask with a smiley face, closely resembling ''LetsPlay/{{Dream}}''.

** When the sex change drug starts to wear off in the middle of a swimming lesson, he tells the teacher that "it started unexpectedly" to get excused and take another dose.

** In chapter 80, Miyo and Mahiro read a YuriGenre VisualNovel named after a real yuri VN series ''Sono Hanabira ni Kichizuke wo / A Kiss for the Petals''.

* ParentalAbandonment: Mahiro and Mihari's parents are completely absent from the story. A side chapter explains that they are on a long business trip overseas.

The manga began in 2017 and was originally [[{{Doujinshi}} self-published]] online for free on Nekotofu's Pixiv account and other platforms, with compilations of chapters sold every few months at doujin events like Comiket; it would later be picked up for serialization in ''Monthly Comic Rex'' starting in 2019. It eventually received an anime adaptation in Winter 2023 by Studio BIND that aired from January to March of 2023.

** A recurring in-universe anime series is called ''[[Franchise/PuellaMagiMadokaMagica Mahou]] [[VideoGame/KanColle Kantai]]☆[[Franchise/LoveLive Love]] [[Franchise/TheIdolmaster Master]]'', mixing four real franchises together. A few characters visible on its cover resemble main heroines of ''Anime/PuellaMagiMadokaMagica''.

** When Momiji wets her bed during a sleepover at Mahiro's place, he helps her hide it, lets her sleep in his bed, and even takes the blame in the morning. Considering the circumstances and that Momiji and Kaede are sisters, it counts as a CallBack.

* ManIFeelLikeAWoman: After Mahiro gets over the initial panic after his transformation, first thing he tries to do is spending some quality time with his new body and some eroge. [[SubvertedTrope Mihari puts a stop to it]], telling him that experiencing a girl's orgasm would [[OutWithABang fry his brain]]. Even after that, he still examines his new body in a mirror while bathing,

* ShoutOut: In the anime's second episode, Mahiro can be see playing ''VideoGame/GuiltyGearStrive''.

* HotterAndSexier: While the manga occasionally has raunchy jokes, the anime has much more {{Fanservice}} and MaleGaze by comparison, especially in the first episode with how much focus it puts on Mahiro's new body.
* ManIFeelLikeAWoman: After Mahiro gets over the initial panic after his transformation, first thing he tries to do is spending some quality time with his new body and some eroge. [[SubvertedTrope Mihari puts a stop to it]], telling him that experiencing a girl's orgasm would [[OutWithABang fry his brain]].

* ComingofAgeStory: The series shows how Mahiro learns to develop better as a new person as although he is reluctant to accept his new gender at first, eventually he becomes ok with it, and learns to appreciate the outside world.
* CompulsorySchoolAge: Invoked when Mahiro is caught at an arcade by a truant officer on a weekday. Though it plays into Mihari's plan to get Mahiro out and socialising more so she goes along with it. Mahiro later enrolls in middle school, playing the trope straight.