Hagure Gakuen - Erokawa joseito ga yatte kita!

After losing her parents, young flower selling Midori is put up by a fairground group. She is abused and forced to slavery, until the arrival of an enigmatic magician of short stature, who gives her hope for a better future.

Due to an error the male student Kagami Yuuki is registered for a room in the girls dormitory of his new co-ed high school. Since no male rooms are available he is left with no other option than to sleep in the girls dormitory in the same room as the teacher that made the mistak in the first place, Ayane-sensei. To avoid getting kicked out of the school for being a boy in a girls dormitory he has to cross-dress whenever he is leaving his room. Needless to say that this brings him a lot of trouble.

In 1923, teenager Kim Shun-Pei moves from Cheju Island, in South Korea, to Osaka, in Japan. Along the years, he becomes a cruel, greedy and violent man and builds a factory of kamaboko, processed seafood products, in his poor Korean-Japanese community exploiting his employees.

High school student Kyosuke Shikijo is the most talented member of the school's martial arts of the fist club. His late father was detective and Kyosuke share his father's strong sense of justice. Kyosuke also has a secret. Kyosuke likes to wear female underwear and transforms himself into the alter ego "Hentai Kamen," wearing female underwear and gaining superhuman powers. This unusual interest also comes from his parents, with his father a masochist and his mother a sadist. By chance, Kyosuke gets the underwear of female high school student Aiko Himeno. With her underwear, he gains various pervert techniques and attempts to protect Aiko from a dirty and heinous teacher.

Pursued by a religious cult and other curse users, former friends Satoru Gojo and Suguru Geto are the only sorcerers capable of carrying the difficult task of protecting Riko Amanai, a student who has been designated to be sacrificed as the Star Plasma Vessel, until she can fulfill her duty.

Tokyo schoolgirl Hiromi and her friends engage in a practice known as enjo kosai, or "compensated dating", where older men pay young girls for dates. Hiromi plunges deeper into this world to raise money for an expensive ring.

Legend has it that the human race is not the only dominant civilization living on Earth. Two other races exist in this world: the Makai (a demon race) and the Jujinkai (a half-man, half-beast race). Once every 3,000 years, a supreme being known as the Choujin (Overfiend) will emerge and bring balance to all three realms on Earth. In present-day Japan, after 300 years of endless searching, a Jujinkai named Amano Jyaku has discovered the presence of the Choujin inside high school slacker Tatsuo Nagumo. But now, Amano, along with his sister Megumi and their sidekick Kuroko, must protect Nagumo and his new girlfriend Akemi Ito from the Makai, who believe that Nagumo is not the Choujin, but an evil entity bent on destroying all living beings on Earth.

The teenage girls of Vestalis Academy are meticulously trained in the art of being “clean girls,” practicing the virtues of perfect femininity. But what exactly are they being trained for? Vivien intends to find out.

Mitsuki and Yuya become stepsister and stepbrother because of their parents' marriage. Mitsuki can't get along with her new family and Yuya doesn't know how to approach his new stepsister. One day, Mitsuki becomes possessed by the spirit of Hiyori. Hiyori likes Yuya and believes Yuya can help her get to heaven. Hiyori places a leather chastity belt upon on Mitsuki and a plan takes place to help send Hiyori to heaven.

In the story, the seasons have changed and it will soon be the second spring. Tatsuya and Miyuki have finished their first year at First Magic High School and are on their spring break. The two go to their villa on the Ogasawara Island archipelago. After only a small moment of peace a lone young woman named Kokoa appears before them. She has abandoned the Naval base and she tells Tatsuya her one wish.

News about the disappearance of panties is still being covered every day. Kyosuke still wears Aiko Completo's panties to battle evil. Meanwhile, Aiko has mixed emotions and decides to get her panties back. Kyosuke suffers from the loss of Aiko's panties and disappears, but his biggest enemy yet is about to materialise.

After an attack leaves him in limbo -- invisible to the living and also near death -- a teenager discovers the only person who might be able help him is his attacker.