Okada-kun is a guy who's at the bottom of the school caste. His only reason for living is to someday see his classmate's large boobs. However, whenever he so much as makes an attempt, Katagiri, his flat-chested...

The story of a charming girl cursed to need the bathroom whenever she's nervous, and a reclusive boy with a special power that helps her hold it in.

Sawari likes to harass her childhood friend, Kiyoto. Sexually.

Giya Ruko is a gyaru girl who is always at odds with the Public Morals Committee rep Shindou Tadamichi because of her tendency to show off too much skin against school regulations. In one instance, she taunts...

This is all about a 16-year-old guy named Gan (family name: Goda) who, along with his various fighting-video-game-styled pals, opposes the very naughty Hanged Cross gang on an alarmingly regular basis.As the...

Lady Takashima has been taught proper etiquette all of her life and she applies it in her daily life but as she sees other people behaving vulgarly she wants to try too, and she actually likes it! The story...

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...

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...

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...

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.