Gender Bender retelling of Suzumiya Haruhi no Yuutsu.

Two stories:

The Moon and the Lake
Kazuna's late grandfather was a writer, and his unpublished novel depicting his private life was found among the articles left by him. He had written down his affection to his lover, while he was a devoted husband. Kazuna felt perplexed, and went to see his grandfather's lover.

Nora in December
Does anyone know where "Nacchan" is? December, ten years ago, Nacchan's house next door burned down. Both parents were safe. Only Nacchan was never found. The body was never found... In the chaos of the fire, only Nacchan... disappeared.

Kaga Maki, 26 years without a lover, a plain office lady. One day, her twin brother, Miki, whom she hadn’t heard from in a while, appeared before her, asking her to substitute for him in an all girls school as teacher. Maki then quit her job and cut her hair to take on Miki’s appearance. But what is waiting for her…?!

A korean neet who lives day to day playing games turned into a girl all of sudden! What will he do? Bagel is Korean slang for a girl with a baby face and a glamorous (sexy) body.

Atrable Federation is a military superpower that started the Endless War. After conquering many neighboring countries the Federation turns its attention to a small island country that is big only in name, the Great Empire of Sun.

Akiyama Maika is a girl seeking her father who went to war when she was little. Seeing the chance in the arrival of the legendary squad of mighty soldiers, Ikkitousentai, to a nearby city, she questions the military about her father's whereabouts. However, much to the girl's surprise her father appears not to be enlisted in the army. Maika, dejected by this news as well as savage city life, suddenly encounters a burly man falling from the sky. The bystanders name him the Invincible Wolf, one of the Ikkitousentai, and it seems like he knows something about Maika's father! Unfortunately, he isn't willing to tell anything to a civilian.

Maika decides to enlist in the Ikkitousentai in order to find her father. Even though the army doesn't accept women, such a thing won't stop Maika!

Following years of war, men have become scarce, and gender distinction has almost vanished in society. Reproduction is mostly achieved through artificial insemination.

Ensign Koizuka has been called back from the front lines to serve as Personal Guard to the Princess - whom she loves - during her upcoming wedding celebrations. The princess is getting married to the eccentric queen of a large country, in the hope of appeasing the more powerful monarch's geopolitical ambitions.

It soon becomes clear that the queens' designs may not be in the princess' best interests. Koizuka, who was the one who revealed the princess' feminine side and got her noticed by the queen in the first place, is torn between jealousy and a feeling of responsibility.

In the midst of all this, Koizuka's Captain confesses her love...

A month has passed since Ito began her new lifestyle as Makoto's bride. Ito has been balancing a part time job and her theatre work, but she finds that she is unsure of how to deal with Makoto's sudden success.

An ordinary boy called Sherlock Doyle is captured and forced to put on his twin sister's dress by the Emperor's diplomat to be shipped to a small country called Ehren. His genius sister, Glinda, went missing two days before she's supposed to be sent to Ehren to be an royal tutor for the King's children. The sudden life change is too overwhelming for Sherlock, but he sees no way out. Later, he finds out the disturbing truth about the kingdom's intention with his sister.

From Tokyopop:
Welcome to a world divided into 12 Mines - each of them its own land - dominated by a rigid social class structure in which the 'Habit' exists to rule and the 'Spar' exist to serve. Their future dim and seemingly set in stone, the Spar find hope in an unlikely hero: the androgynous child born of a dwarf and hunchback who is prophesied to overthrow the tyrannical rulers!

Kurita Yomi suffers from an unfortunate affliction -- when she sleeps her body can be possessed by others. She benefits in her own way from these experiences though...

Sakamoto Masami is in his first year of high school and the ace of the basketball club. Because of his asocial behavior, his coach tells him to temporarily join the school's cheer leading club to increase his team spirit. Soon he finds out this isn't your average cheer leading club. All of sudden Masami is facing the choice to either put his male pride aside and dress up as a girl, or to never return to the basketbal club.

Cutie Honey for the 21st Century.
Seiko Hayami a private detective and her partner Hisashi Hanyu, are tasked with solving the cases that the police can’t handle. What they soon uncover is a seedy underbelly of crime perpetrated by an organization that can turn humans into monsters.
With Seiko being overwhelmed by these outrageous cases will a hero arise to help in her stead?
A warrior of love only heard from stories long ago.

From Chibi Manga: Will Kaname's destiny as ballerina change? Because she wished to become a great ballerina, Kaname followed Miki-sama and entered in the prestigious ballet of her school. Kaname will secretly develop her talent as ballerina there.

Yuuya, the son of a bar owner, spends his days lazing around and juggling his nightly part-time jobs, one of which is cross-dressing as barmaid Yuria on behalf of his mother. One night, a bunch of fishermen come to the bar. Among them is Ken, an awkward youngster who falls for Yuria at first sight. They continue to meet, but what will happen if the sincere Ken finds out about Yuria's secret..?

I received a help message from Benishiro, when I arrived I found him...Notes: Names will differ from original

That day, I died at the train station and my mind got transferred inside to a body of a girl in a fantasy world.

Hinata Saotome is suddenly asked out by En Shinohara, a gorgeous boy in her grade. What she doesn’t know, though, is that his hobby is cross-dressing! En has always hated men, and whenever he sees his own reflection, he punches out whatever is doing the reflecting (windows, mirrors…). To combat this hatred, he dresses up as a girl. Hinata decides to go out with him anyway, despite his weird hobby.

Also included are the following unrelated short stories:

• Sweets Honey (V.08)
Serizawa gets sick whenever she smells something sweet, but she likes a boy named Miura who has an extremely sweet tooth.

• Boy's Lily (V.16)
A spin-off of Usotsuki Lily where En is a normal guy who recently started dating Hinata whose hobby is dressing like a guy.

• Amber (V.17)
Mio Hasekura is a helpful high school girl who is very fond of her late father who died when she was younger, and hopes to find a guy like him someday. On her way to school one day, she comes across a man collapsed on the side of the road and Mio helps him out.

The Arume, a dominating alien race of female humanoids (alien lesbians) has conquered Earth. With total control over the world they have begun live experiments on humans.
One day, out of the blue, a girl that Shouta Yanami has never seen before in his life arrived at his house asking to have sex with him. How will this end for Shouta Yanami?

From Kodanclub:
An ordinary, quiet town is shaken by a series of bizarre happenings brought about by the darkness in human hearts. There are no solutions in the real world: Only "Dream Messengers" can find the answers. Dream messengers connect the fabulous with the real and control the power of dreams. Their leader, Toko Mishima, works with 8 other messengers using the powers given by an old spell and a toy made by Toko's father. Toko, her younger sister Rinko, Hajime Tachibana, who loves young girls, and the six other Dream Messengers are given the names of days or stars - Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Raff, and Keito.

1) Fudanshi-kun Naughty BL-Like Experience!
Kouhei Arima is a bit of an otaku, in fact he's the fudanshi type! After meeting Kazuomi Shiiba, a closet bisexual hair stylist, Arima finds he starts experiencing the BL scenes he's used to reading about!

2) Obligatory Cross-Dressing for Gakuran Boy
Arima Kanata is male. Cross-dressing is absolutely not his hobby. However because of his feminine face he often gets mistaken for a girl. What to do when Mimasaka Kyougo, home room and PE teacher, suddenly finds something weird in his bag during a surprise inspection while he is dressing up as his twin sister?!