Energy Kyo-ka

A 2013 Hentai Doujinshi manga series by Tamatsuyada.

High-schooler Kyouka Shiraishi uses sexual favors for her reluctant step-brother and her fellow students to do things like pay her phone bills, but after being busted by the student council president Reona, she's given the option to work at Reona's mother's brothel. She accepts it...very eagerly.

Energy Kyo-Ka is basically a comedy manga with lots of sex, so there's no big overarching storyline. Most storylines will involve about her job, which Kyouka seriously loves, and her obssession with her brother, often mixing it together.


 * A Day in the Limelight: In Chapter 8 Reona is the main character, with Kyouka taking a backseat, only appearing in two pages.
 * Beach Episode:Omata de Nukarete Okuchi de Gokugoku? Yuujou to Fukujuu no Semen Gourmet Match. It is set on a beach where Kyouka's group is challenged by Rachel to competition involving...extracting fluids from males.
 * Bi the Way: In Chapter 5, Reona shows signal she is romantically attracted to her classmate Harada and even touches her tongue with her own....All while they're having sex with male students.
 * Black Comedy Rape: When she becomes principal and teacher of Kyoka and Reona's school, Reona's mother threatens to send "nasty men" after students who disobey her rules. And they will be going while wearing no clothes.
 * Brother-Sister Incest:
 * Kyouka is very attached(and envious) of her brother.
 * Soushuuhen "Gaisen Fukki Hen" . Sherry turns out to also be incestuous with her brother.
 * Cosplay Cafe: Chapter 8 focuses on Reona and her friends doing one in the school festival. Of course it degenerates in servicing the clients into a not-very-chaste way.
 * Distracted by the Sexy: At least from Kyouka's point of view. The moment she sees men offering free sex in the fertility festival, she seems to forget her previous objective of stopping Sherry of having a baby from her brother. But she still manages to recover and challenge her to a sex contest before it's too late.
 * Hot Springs Episode: Chapter 7 is set on a hot springs where the female characters give service to male clients at random, with a lottery deciding which client each girl must please.
 * Mood Whiplash: Chapter 10 ends with Erina being shot by an sniper just after telling an lovey-dovey story about how she met her husband.
 * My Brother Is Off-Limits:
 * Chapter 3. Kyoka gets very quickly jealous when Reona begins to seduce her brother and stops her before she can take his virginity.
 * Soushuuhen "Gaisen Fukki Hen" . Kyouka gets very envious when her brother appears with a female friend that does turn out to have a romantic interest on him.
 * Playboy Bunny: Botsuraku shita Houjou-ke Donzoko Shoukan no Fukkatsu o Kake, Mama no Nuginugo Gokuraku Service. Kyouka's group dresses like that to advertise their new prostitution service.
 * Sick Episode: Chapter 3, where all prostitutes of the brothel are sick and Kyoka has to recruit her old friend Karin to service a client.
 * Sore Loser: Lily Tanaka, who left the brothel years ago solely because Erina surpassed her and came back to try to take it back, but knocks out her old co-worker with a tranquilizer so she can't compete, proving she isn't in for a fair competition.
 * Token Loli: Reona is the only major female character with a completely flat chest.
 * Zettai Ryouiki:Chapter 2. Both Reona and Kyoka in their school uniforms have grade A.