Shungo is a normal high school student living in a huge house. One day, his sister Ryoko sends Mayu and Mikihiro Tsukimura, two siblings, to live with him to help Mayu overcome her problem. Mayu's problem...

Goshūshō-sama Ninomiya-kun's story revolves around Shungo Ninomiya, a male high school student trained in difficult hand-to-hand combat. He lives in a huge house with his older sister Ryōko, who is almost...

Santaro Tsubaki is a high school student at Joto Academy. He is the president of the Cinema Study Group, which produces a special effects film about a fictional superhero named Green Glass. However, one day...

Mikado High School trains the best students to be the best mercenary bodyguards. But Morito Hayama, a merc escort student with no rank whatsoever, is suddenly assigned to guard a person so highly valued that no...

A great magician from another world takes residence inside the body of a creepy, fat otaku from modern day Japan who is hated by those around him.

High school boy Junichi Hashiba laments not having a girlfriend as his classmates have seemed to be pairing up everywhere. His single unattached friends force him into boldly confessing his love to Yukana Yame,...

High school teacher Haruo Nemoto is disliked at school for being boring and taciturn. However, deep down, he's a man of justice who cares more about his students than anyone else and wishes for their youth to...

Two prisoners managed to escape after the police truck carrying them crashed on the highway. One of them , Mr Sawazaki is a gangster who has sent 10 different bosses to hospital. The other called "You" - our...

Six months after the events in Hammer Session!, the genius swindler Otowa Yonko returns with the goal of acquiring more formidable achievements. A chanced encounter with his former partner-in-crime Mizuki...

As an anonymous erotic author, high-school student Mitsumaru Yahiro needs to keep his occupation a secret. If anyone were to find out, everyone would look at him as a pervert and his life would be over. Yahiro...

On her way from school, Saya was hit by truck. After recovering, she could see a bizarre being. Only she could see this being. It's name was Hapiel. Hapiel does what she wants in Saya's school, harassing Saya...

Mizuki has been hired to be the private tutor of Naomae kun, one of the worst student of his class.... Naomae kun is not only lazy, but is pretty much incredibly negative when facing academic studies, fact...

Touge Yuugiri is a chick magnet. Without lifting a finger, girls vie for his attention, "accidentally" topple on him, or even invite him to spend some special time alone—it's almost as if he is the protagonist...

Harenchi Gakuen is an elementary school whose teachers and students are all perverts. Boys peep girls changing. Girls pull up their skirts and show off their panties Considered to be the first ecchi manga...

Haru Okamoto, a teenage girl who adores katana, is just now entering high school. When she was little, she happened upon a katana in her grandparents' house. In their haste to get the blade from her, they...

School Miyazaki Women's Gakuen High School.　Ichijo Ranko (Animal needing) is a impulsive action-type girl love Monster Sakurano Komachi (Sakura Komachi), early enrollment, deprived of lips! On the other hand...

A series of related stories about (a lot of) middle and high school students as they discover their hatsukoi (first love).

According to his childhood friend, Tarou Kurume is not interested in love. One day Tarou is struck on his head by a ball rendering him unconscious. When he wakes up, there's a girl floating above him. What...

Harada Izumi has just transferred to a new high-school and is doing her best to fit in, which isn’t easy when you have a secret as big as hers – that she can read minds! And it doesn’t help when she is seated...

A short side story happens during the 8 years time skip of the original Ultimate! Hentai Kamen

Hentai Kamen returns. Promotional One Shot for the second live action Hentai Kamen movie.

Mitsuya Haruyoshi is a devout Christian High-school boy since his father became a priest after his mother cheated on his father. He tries to avoid lust and desire because his father wants him to become a priest...