From Shoujo Manga Maniac: Eun-Yo is a girl spoiled by her brothers. Sure of her beauty and her charm, she neglects all the boys who confess to her. Because there's only one in her eyes: Chan-Kyung, the top student in her school. While she has an audition for fun with a girlfriend, she meets Lee Nan, the famous singer, haughty and execrable. He will continually ensnare her... From Udon Entertainment: Eun-Yo Song has beauty and popularity; everything a girl could want! All the boys declare their love for her, except the one she really wants - heartthrob Chan-Gyeong. After a chance encounter with pop-singer Nan Lee, Eun-Yo hatches a scheme to become a star herself, and win over her dream boy. But little does she know that Nan's the one pulling her strings... and she's about to fall into his trap!

Jun and Kaoru are next-door neighbors and childhood friends with an incredible secret: at midnight, their bodies change sexes. This is their story of casually supporting each other and having as normal lives as possible.

While pursuing a criminal, the pretty but reckless interplanetary police officer Birdy Cephon Altera accidentally kills Tsutomu, an Earthling high school student. To make amends, Birdy is forced to share her own body with Tsutomu's spirit so that he can continue his own life.

At first, Tsutomu knows nothing about his situation, but he soon discovers that his body is starting to take certain actions without his mind ordering it. In times of action, Birdy takes full control of their shared body, transforming it back into her original female form.

NOTE: Volume 1 came out 7/1996 and was never finished. A second series was published under the manga title ＶＳ版　鉄腕バーディー for 2 volumes. This second series came out 12/1996.

Traps have existed since time immemorial; a fact that Chiroda Taishi laments, as he seems to have both an affinity and an aversion to being trapped.

The cute and cheerful girl working at a Japanese style maid cafe, Hana. The black haired cold beauty, Mei. Though the two are in love with each other, they have not realized it. However, they have a secret that should not be discovered...

Reincarnated as the blond-haired, blue-eyed seventh prince?! Save the kingdom with "office worker" skills!

(Please note there is a new artist for the sequel)

Athena, goddess of wisdom, goes back to school to seek revenge!

Tougo Ushiwaka reunites with his childhood friend and first love Ren Ryuugasaki after about 10 years. However, Ushiwaka had been traumatized to discover that Ryuugasaki, who he had thought was a girl, is actually a guy with a fondness for cross-dressing.

Exotic. Smart. Lethal. Musashi #9 doesn't live the life of a normal teenager. Her's is full of intrigue, violence, and death.

Some people want to change the world. This sixteen year-old girl can. Deep ideological, religious, and social differences drive the world closer to destruction, and the innocent masses suffer while politicians huddle in safety.
One ultra-secret organization is committed to preserving world peace, and their top agent goes by the code name Musashi #9. This agent battles terrorists and extremists, while bringing hope to the people she saves. The world may be a dangerous place, but it's a whole lot safer with Musashi #9 in it.

Two brothers leave their city life of fame and fortune for a more healthy alternative at their grandfather's farm. Zenta is the younger of the two brothers and is very sickly. Because of this, his older brother Ryou decides to drag his girlish younger brother to the countryside. Though Ryou and Zenta are without parents after an accident five years before this story takes place, they are able to support themselves well with their music career while in the city.

Shuuichi Hayasaka has been living a normal life until one day his roommate Masamune Yasuda wakes up as a girl. Although Hayasaka feels uncomfortable about now sharing a room with Yasuda as a girl, Yasuda is fine being a girl as long as he can sleep most of the time.

From: Easy Going Scans

In a world where only females are born with the ability to practice magic, Amel, a boy is born with the ability. In this world, he must conceal he is a male or he will be considered illegal. From the prestigious Espresso family, he/she must prove that only he/she is needed to capture the illicit escapees.

After the manufacturing company of R-18 dating sims undergoes dissolution, an obsessed 30-year-old virgin visits a deserted shrine and requests to be sent to the world of their masterpiece, Kokorone Heartful.

Although his wish is granted, the god mistakenly turns him into the heroine instead of the protagonist. Ordinarily the romancing choices are left to the protagonist. However, unless he completes the game as the heroine, he will be forced to remain in Kokorone Heartful as a woman forever.

Our main character, Asai Manatsu, is the nice guy, who gets isekaid after he got dumped while proposing. Then he dies while trying to save a mysterious girl, but then wakes up in her body?!

Bullshit aside, this is just Dark Souls with waifus.

A princess of the fallen Spirit Clan plans to take her kingdom back and get revenge for her family. Along the way, she meets several trustworthy friends, but just as they are about to succeed, the conspiracy from a century ago reveals itself. Facing the choice of completing her revenge or saving the world, which will she choose?

After quitting her job, Morioka Moriko became a NEET and got addicted to an online game. In that game, even a wilting woman in her thirties like her can become a young, handsome guy and Moriko's new adventure as Hayashi began.

The manga follows the daily lives of Kou, a slightly quirky man, and his wife, Yukio (often called Yuki), who is a cross dressing man. Read as this married couple handles the trouble that comes with cross dressing in modern Japanese society.

The story of a boy who becomes a woman.

The twins, Sei Shunran and Sei Shunrai, are often mistaken for the wrong gender. The older sister, Shunran, is smart and the younger brother, Shunrai, is beautiful. Shunran wants to take the civil service exam and not enter the inner palace. So the twins switch places. Shunran will take the exam, and Shunrai will enter the inner palace.

It’s a rude insult when lowly and headstrong servant Edna comes to marry Duke Eli, instead of the noble daughter he expected. But the ambitious maid hides an even bigger secret behind her obvious ruse – one that could change the kingdom’s very history. Can the two find freedom, redemption – and love – without drawing their swords on each other? Based on the hit novels by Korean author Ryu Hyang.