History Manga / Oyajina

%%* {{Megane}}: Shiro, Tomoe, and Akaneko.

%%* RomanticTwoGirlFriendship: Tomoe and Chinatsu while they were females.

* BeautyMark: Setsu.
* {{Bifauxnen}}: Setsu and Ryuu when they were female.
* BigDamnKiss: Shinomiya turns Ryuu's chaste birthday kiss into one of this.

* BoysLoveGenre
* ButNotTooForeign: Daniella who's half-Japanese.
* [[{{SuperDeformed}} Chibi Mode]]: Tama's mom switches between mom mode and [[{{SuperDeformed}} Chibi Mode]], while Tama-chan's male form is always this. The other characters are usually only SuperDeformed on title pages and volume covers.
* ClassRepresentative: Setsu.
* CosplayCafe: The Oyajinas put on one for their SchoolFestival in the second volume.
* DarkSkinnedBlond: Haishima.
* {{Fanservice}}
** ShirtlessScene: Both in male and female forms.
* FirstKiss: Shinomiya steals Ryuu's first one.
** {{Gainaxing}}
** LingerieScene: Chinatsu, the first time she notices she has been turned into a man.
** PantyShot
* GenderBender
* {{Gonk}}
* HugeGuyTinyGirl: Tama and almost everyone.
* IncompatibleOrientation: Setsu and Ushio while Setsu was a girl.

* {{Megane}}: Shiro, Tomoe, and Akaneko.
* {{Nosebleed}}:
* OfficialCouple: Ryuu/Shinomiya and Tomoe/Chinatsu for now.
* OlderThanTheyLook: Tama-chan while she was female, she only looks short while she's a guy.

* OneHeadTaller: All the couples have this going on.
* {{Otaku}}: Kuni and Shiro; Kuni is a run of the mill otaku while Shiro is a [[{{YaoiFangirl}} fujo-er fujayi]]

* PronounTrouble
* RomanticTwoGirlFriendship: Tomoe and Chinatsu while they were females.
* SharpDressedMan: The Oyajinas are frequently seen in suits.
* ShipTease: Misoji/Satou, Misoji/Tama-chan, Ushio/Setsu, Ushio/Tomoe, Shiro/Kuni, and Shinomiya/Tomoe.
* StalkerWithACrush: Misoji for Tama-chan, although the tables seem to get turned by the end of the second volume(at least momentarily).
* TomboyAndGirlyGirl: Ryuu(tomboy) and Shinomiya(girly girl).

* WholesomeCrossdresser: What do you expect from guys who used to be female?

** FanserviceCostumes: The CosplayCafe is full of this with Shiro in a police uniform, Ryuu as a butler, Shinomiya in a military uniform, Chinatsu and Tama-chan in maid outfits, Akaneko as a vampire, and Setsu as a yakuza.

!!!This manga contains

* {{Biseinen}}: They might be middle-age but some of the characters are hot! Especial mention goes to Shinomiya. For more traditional {{bishonen}} examples there're Satou, Misoji, and Ushio.

* DarkSkinnedBlond: Haishima.

* FirstKiss: Shinomiya steals Ryuu's first one.

* HoYay: With a strong undertone of LesYay in some cases. Although, there are girls who are more interested in their classmate's female body than in their male body.

* [[{{SuperDeformed}} Chibi Mode]]: Tama's mom switches between HotMom mode and [[{{SuperDeformed}} Chibi Mode]], while Tama-chan's male form is always this. The other characters are usually only SuperDeformed on title pages and volume covers.

* HotMom: Tama-chan's mom.

* {{Biseinen}}: They might be middle-age but some of the characters are hot! Especial mention goes to Shinomiya. For more traditional {{bishonen}} there's Satou, Misoji, and Ushio.

** Gainaxing

* {{Biseinen}}: They might be middle-age but some of the characters are hot! Especial mention goes to Shinomiya.
* {{Bifauxnen}}: Setsu and Ryuu when they are female.

* [[{{SuperDeformed}} Chibi Mode]]: Tama's mom switches between HotMom mode and [[{{SuperDeformed}} Chibi Mode]].

* LoveTriangle: In the first volume we have this love square: Setsu has a crush on Ushio who likes Tomoe who like Chinatsu. In the second volume there's one with Haishima, Ryuu, and Shinomiya.

* LoadsAndLoadsOfCharacters: Only in comparison to most other BL manga.

* OfficialCouple: Ryuu/Shinomiya and Tomoe/Chinatsu.

* WholesomeCrossdresser: What do you expect from guys who used to be females?

* Nosebleed:

For some reason or another(probably chemical pollution) all the female teenagers in town have been turned into middle-aged men who still like other men. Friends and classmates are suddenly finding each other attractive and falling in love.

* PornStache: Daniella gets a truly magnificent one when she gets turned into a man. A lot of the other girls get one too when they are transformed into men.

** CostumeFanservice: The CosplayCafe is full of this with Shiro in a police uniform, Ryuu as a butler, Shinomiya in a military uniform, Chinatsu and Tama-chan in maid outfits, Akaneko as a vampire, and Setsu as a yakuza.

* Fanservice

* ChibiMode: Tama's mom switches between HotMom mode and ChibiMode.

* PornStache: Daniella gets a truly magnificent one when she gets turned into a man.

* GenderBender

* {{Biseinen}}: They might be old but some of the characters are hot!

* IncompatibleOrientation: Setsu and her crush while she was a girl.

* {{Megane}}: Shiro and Tomoe.

* {{Otaku}}: Shiro's friend, while Shiro is a [[{{YaoiFangirl}} fujo-er fujayi]]

* StalkerWithACrush: Satou for Tama-chan, although the tables get turned by the end of the second volume.

*

A BL series serialized in the Opera(Edge) magazine since 2010 and created by Hiiragi Nozomu.

For some reason or another(probably chemical pollution) all the female teenagers in town have been turned into middle-aged men who still like other men. Friends and classmates are suddenly finding each other attractive and falling in love.