Takahashi wakes up one day to discover he's turned into a woman. Curious about what it feels like to have sex as a woman, he asks his friend Hirukawa if he wants to have sex.

To gain the confidence to confess his love to his crush, high school student Yashiro visits a secluded shrine for 100 days straight. This earns him the attention of the enshrined deity and his fox attendant Ukon who follow Yashiro on the 100th day to see how the confession turns out. However, they are surprised to see him confess to a guy, Yashiro's longtime friend Kenta, only for Kenta to turn him down. Although heartbroken, Yashiro tries to joke around with Kenta, but he accidentally gets killed when a truck runs into him.

Yashiro awakens in the presence of the shrine's god and Ukon, and as a show of gratitude, the god decides to restore him back to life to give him a second chance with Kenta. In doing so, the god grants his wish to be reborn as a high school girl and gives her the name Kagura Tendou. However, she soon discovers that the god and Ukon plan to watch over her relationship with Kenta, although she's the only one who can see and hear them.

A man has a girlfriend but he dies, and then he possesses a school girl and rushes to meet his girlfriend.

From DMP: Why is Toru Kouno receiving such an overly warm welcome at his new all boy's school? He has yet to discover the secret system called "Hime (Princess)" in effect at the school. Boys who are chosen have to dress up as a girl in every school event! Little does Kouno know that he would be the chosen one... -- Contains the story Tore x Puri (Train x Princess) in volume three.

Akira Shiraishi, a young high-school boy with feminine features, joins Blaue Rosen, the all-girl band that Mizuki Sakurazaka, an androgynous girl of the same age, performs lead electric guitar in.

Their high-school life is anything but typical: Mizuki is the "prince" of her all-girl school while Akira is the "princess" of the neighboring all-boy school. A series of comical events brings them closer together, even as the prejudice of the people around them tries to hold them back.

After the death of his grandmother and only remaining relative, Shinakawa Raizou moves in with the mysterious Mitou family as their housekeeper. He soon learns the Mitou family's secret: the Mitou can use great power with only their words. But because this power harms the body of the user, the Mitou pair up with human-like paper dolls to transfer their wounds to them through bodily fluid contact.

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Ze 2012 extra
Ze gashuu iro no hon - Artbook

Midori Yamate is a 15 year-old girl and is very much a tomboy. When she was young, Midori meets a boy called Tsukasa Hino, who came to the island she lives on for a holiday. He teaches her to play soccer and she falls in love with the sport. Midori is inspired by Tsukasa and continues to play soccer in hopes that they would meet again someday. When they do meet again Tsukasa does something unforgivable. Determined to defeat Tsukasa on the soccer field Midori enrolls in an all boy high school.

Contains a short story of 2 chapters called Shounen x Cinderella in the 8th and 9th Volumes:
Sakuragi Azuma has a secret that no one should ever know about: he's actually Momo Kasuka, an up and coming female model! While shooting a new drama, he meets another arising newcomer named Yui Hazuki, and things are going to get heated!

Kasukabe Koukou Josou-bu is a part of a series of oneshots of the same name featured in the Josou Shounen comic anthologies. It follows Akira Komukai, a member of his high school's cross-dressing club, along with his childhood friend Minato Kasukabe and a third member, Hikaru Ayase.

Shinya goes to live and take care of with his two younger cousins, Tsubasa Fujisaki and his younger brother Subaru, after their parents go overseas. However, Shinya is surprised to find both cross-dressing upon his arrival.

A spin-off featuring Subaru and Asakura from Nanashi no Asterism.

It's about Natsukawa and his childhood friend Haruno. On their first day of high school, Haruno decides to have a coming out and goes to school in a girl's uniform.

Note: The manga was previously known as Josou Debut.

Haru goes on a double date with childhood friend Natsuki.

The Futami twins are a popular pair at school, but each are hiding a secret.

Nishino is a cross-dresser hiding that he's a guy, and he gets asked out by Akutagawa, who has a reputation for being a loner and a misogynist.

In an effort to gain an apprenticeship with his favorite author, the author imposes a set of various guidelines and conditions for his apprentice to follow which involve cross-dressing and embracing the lifestyle.

“'I’ll create a witch!!”
During the 17th century, the German alchemist Johann Schultz successfully created a witch. He then injected that power into his own blood.
In the present day, as a result of a scheme created by his cousin, Yomoda Rena, Shurutsu Kenichi, a high school student and a third generation German, fights on secretly as a blood relative of "Brocken", all in order to hunt down those who abuse the artificial witch theorem. Yet for reasons unknown, he transforms into a Magical Girl "Heroine"...?

"When mystified Mizuki wanders into a meeting for a school fashion club, he has no idea that there’s much more than meets the eye! Will he find the courage to cross over into a world of surprise and strange attraction?

Club for Crossdressers mixes and matches with cute couples who stir up hidden desires! Can a new nurse give a lesson in extra-special patient care? And is the solution to one guy’s longing…sweet, secret stripes?" (Project H).

Contents:

* Josou Fassion Bu (Crossdresser Fashion Club), parts 1-3:
Three boys form a crossdressing club at school, ecchi gender-bending ensues.

* To Aru Naasu no Netsuretsu Kenon (A Nurse's Ardent Thermometry)

* Yukemuri Otokonoko (Steam Trap)
A guy meets a cute girl at a hot springs.

* Kokuhaku (Confession)

* Sukusui Bifouafutau (Before and After Swimsuit)

* Magical Mimikaki Panic (Magical Earpick Panic)
A professor creates a magical ear pick that whoever it is used upon fall in love with the person who is cleaning their ears.

* Unmei no Shimapan (Striped Panties of Destiny)

From Tokyopop:
When freshman transfer Mokichi arrives at Swan Academy High, he's got a chance to start over with a clean slate. He's got a plan, too. Kick the butts of the toughest guys in school, prove himself to be the baddest dude around, and run the whole shebang. Problem is, it's his butt that gets kicked that first day. Completely humiliated, Mokichi joins the Wrestling Club in hopes of learning to fight. There he meets unlikely allies, Tamako and Higuchi, two of the hottest battle babes to ever roll their sweaty bods over Swan Academy's gym mats. And Mokichi's gonna need all the friends he can get, what with the likes of the Karate Club looking to "break in" the new kid in the worst way possible.

From Aerandria Scans:

Who am I? I'm Gi-ryum, a tall, handsome bachelor, and the coolest guy in the country who even makes O△ sama (Reference to "Yon-sama": Bae, Yon-Jun from Winter Sonata) cry at my beauty. One day, I received classified info of the princess enrolling in a regular high school. Huhuhu. Can I snag the princess with my irresistible beauty?! I will be the king's new son-in-law!

An alternate retelling of how Marika, Yui and Parou met from Bokura no Hentai.