Shinobu Watanuki (39) moved with her family to her husband's parents' house. Shinobu, who is also an unsuccessful manga artist, had made up her mind to take this opportunity to break her brush, but when her past work became a hit on e-books, she decided to draw a new work. When he asked for an assistant, the applicant was a beautiful 22-year-old young man named Chiaki Tachibana.... This is a story of dreams, work, love, and romance from the age of 40, written by a talented author. (Source: Piccoma, translated)
When career-minded Kentaro Hiyama finds out that he’s pregnant, it will change the course of more than just his own life. In the Japan of Eri Sakai’s thought experiment, ten years have passed since the male sex has spontaneously gained the ability to get pregnant, and society has struggled to adjust. Kentaro isn’t sure at first who the mother might be, and quickly finds himself butting up against regressive attitudes and discriminatory policies—most of which long precede male pregnancy. In his previous life, he’d never given any of it a second thought—he may have even held the same views. But through his encounters with other pregnant people, and galvanized by his new perspective, Kentaro turns his skills in business and marketing to effecting social change. (Source: Kodansha USA) *Note: Includes 1 extra chapter.*
The series picks up three years after Kotaro's birth and focuses on Kentaro and Aki trying to raise Kotaro despite their conflicting work schedules. They begin to consider the possibility of living together and having another child. Meanwhile, pop sensation Seiya Aoyagi has become pregnant with fellow pop singer Asakawa Sakura's baby and decides to raise it, causing a rift between them. Kentaro's boss, Hiromi Shimomura becomes pregnant with his mistress' baby. He is in denial, but must come to terms with the growing evidence of his adultery. (Source: Wikipedia)
In the future, many arts and sciences have stagnated, but cosmetic surgery has been developed to the extreme. Now people can cheaply and easily change their appearance, not only to become more beautiful, but also to gain inhuman attributes, like cat ears or wings. The short stories in these volumes focus on various situations that arise as a result of this advanced technology. People can switch genders or change their apparent age, and some people also make themselves deliberately ugly. There are also highly regretted surgeries, such as the otaku who makes himself into an anime character, or those who take 'bigger is better' a little too far to the extreme in modifying their sexual characteristics. It is a strange new world of cosmetic surgery and there are many stories to be told! (Source: MangaHelpers)
"I thought if I became beautiful, I would find happiness..." Even though she was the opposite of "cute," Akiko was having fun. But when she woke up the morning after a drinking party with her beautiful friend Mana, something incredible had happened...! [From MAL]
The story centers on Riki, a 29-year-old woman who quits her caregiving job in her Hokkaido hometown and moves to Tokyo to work at a hospital, but the exhausting and irregular job leaves her with financial problems. She hears of a high-paying side gig her colleague Teru. She heads to the Japanese branch of Arte, a specialized American assisted reproductive technology clinic to become a surrogate. (Source: Anime News Network, edited)
Theirs is a world of three sexes: man, woman, and one more, a third sex. Kizuna, a third, is unable to process her friend's suicide. She starts dating the "woman" Shino and "man" Tougo. But each of the three has different expectations, and their relationship grows distorted... The "woman" Shino who holds darkness in her heart even as she hungers for love. The "man" Tougo who is captured by carnal desires. The "third" Kizuna whose own feelings and sex are ambiguous. Within this risky love triangle, Kizuna impossibly becomes pregnant.

