The story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.

Honda Goro the son of a famous baseball player loves nothing more than baseball itself. His biggest dream is to show his father that he can become the best pitcher in the world despite all the hardships he had to endure he keeps on running towards his goal at full speed.

Mizuki Yukikaze, a student at a ninja training academy, learns new demon-fighting techniques. One day, she and her friend Akiyama Rinko decide to infiltrate an evil organization in hopes of finding Yukikaze’s mother; however, to do so, there is a great price they have to pay…

Gakuen Heaven is a media franchise originating from the PC game Gakuen Heaven: Boy's Love Scramble, originally released by the company SPRAY. The franchise gradually expanded to include more games, drama CDs, manga, and anime.

Inspired by a small-statured pro volleyball player, Shouyou Hinata creates a volleyball team in his last year of middle school. Unfortunately the team is matched up against the "King of the Court" Tobio Kageyama's team in their first tournament and inevitably lose. After the crushing defeat, Hinata vows to surpass Kageyama. After entering high school, Hinata joins the volleyball team only to find that Tobio has also joined.

Imagine being the only child your whole life, and then suddenly finding yourself gaining 13 step-brothers! Ema Hinata's lonely life takes a new and exciting turn when her single father Rintarou Hinata, a famous adventurer, falls in love and marries Miwa Asahina, an apparel maker. In order to give the newly-wed couple space, Ema starts living with her new step-brothers in a mansion called Sunrise Residence and for the first time, experiences being part of a lively and big family. She finally feels safe and content. Each brother has his own unique personality, and Ema soon realizes that it is not only family love that grows between them, but romance as well. Which brother will be the one to steal her heart in the end?

A dream of falling from the sky...and then birth. Rakka is born from a large cocoon into the Old Home, greeted by a group of females with small wings on their backs and shining halos above their heads. Soon Rakka’s own wings grow, a halo is placed on her head and she is told that she must work in the nearby town of Grie. She soon realizes that the town and the entire world they live in are confined behind the Wall, a tall, impenetrable wall that none except the mysterious Toga are allowed to exit.

At the isolated all-male boarding school of Kanenone Gakuen there are no females for miles but the school board has begun talks to merge with an all-girl boarding school, in hopes of becoming a co-ed boarding school.

Takeo Goda is a giant guy with a giant heart. Too bad the girls don't want him! (They always go for his good-looking best friend, Makoto Sunakawa.) Used to being on the sidelines, Takeo simply stands tall and accepts his fate. But one day when he saves a girl named Rinko Yamato from a harasser on the train, his (love!) life suddenly takes an incredible turn! Takeo can hardly believe it when he crosses paths with Rinko again, and he finds himself falling in love with her... But with handsome Suna around, does Takeo even stand a chance?

A group of guys get sent to what they think, is an all boys school, however they soon realize it is inhabited by women for the summer.