When you wake up after hitting your head, your sex drive will be multiplied by 4000?! Seigo Hasegawa, a man who has suddenly acquired a cheat sex drive, and his childhood friend An Yagami, who feels responsible...

Shinichirou would rather spend his life playing games on the internet, but sadly he's a heir to a company. His grandfather deems his current life-style unfit for a heir, so he throws him into a house with eight...

Aoi Kururi is an onmyou-ji who is studying smells at a private academy. He in fact hates using onmyou magic, but when a spell is mysteriously cast on his whole class that causes everyone to wet themselves, he...

One day, school teachers come as freeloaders to the inn run by his parents. Hiro Kazami, a high school boy, decides to take care of the inn and his future. Under one roof the forbidden harem romantic comedy...

A boy is initially overjoyed at the news of him having an older sister, due to his father remarrying to a woman who has a daughter. That is, until he finds out that his new sister is actually his school's...

One day when average middle schooler Koji Miyahara came home from school, he found a naked girl sleeping in his bed. To his surprise, she was a ghost, and her name was Alice Fujinomiya! Alice can only be seen...

Hiromi can't wait for her cousin Makoto to come live with her - but when "he" finally shows up, she gets a good deal more than she bargained for. Toshiki Yui turns a hentai fetish into the plot hook of this...

Ryunosuke Yanagida turns bright red whenever he gets flustered. He harbors a deep insecurity: He can't look a girl in the eye. One night, Ryunosuke accidentally witnesses his next-door neighbor, Ami Sasaki...

Makino Yayoi is a 16-year-old high-school girl. She made a promise with her mother that she wouldn't have sex until she turned 20 years old! However she believes that promise to be in danger! She mistakenly...

When the mantis-like aliens known as Kiseichuu descend on Earth, they have one goal: eradicate the human race. They do so by absorbing humans' H-energy–the sexual passion that fuels so many people and keeps the...

Tsuchie Takeshi has dreams of when he played with Hikari-chan as a child. He remembers her as a kind, sweet girl. However, one day on the way home from school, Takeshi is abducted and taken to a huge house...

Meet Kouyou Kotesashi, a protagonist with extraordinary massage skills! Aiming to become a sports doctor, Kotesashi is determined to score a special scholarship to medical school. Starting this spring, he'll...

Airi-chan, a naturally airheaded heroine, loves her childhood friend Yuu-kun. However, both her feelings of love and lust are sky-high, and she's always getting into lewd accidents! Meanwhile, the shadow of NTR...

This manga is about the sexual adventures of three very sexually-curious girls that attend an all-girl's high school.

Tooru Amano is a useless art student who keeps failing grade after another without being able to draw his graduation project. However, Tooru once attracted the public's attention with a painting he drew during...

Utsunomiya has been a single virgin until all the way to his 30th birthday. Then one night on his way home from work, something happened that caused a shift in time which made him go back to the past during his...

Taku, a high school boy has a crush on his childhood friend Riko. But unfortunately for him, Riko holds feelings for her other childhood friend, Naoki which causes Taku to be in pain everyday. One day, after...

When Sora enters high school, his homeroom teacher is a sexy gal with huge breasts and she's none other than the changed version of Suzune, the innocent girl next door who was his first love. As the teacher's...

Yen Press: Takane Takamine is the goddess of her high school. With perfect grades, athletic prowess, and unrivaled beauty, this student council president is the apple of everyone's eye-including Koushi...

Hamaji Youhei, a freshman in high school, lives his life aimlessly, lazing around all day. He can't keep up with his studies, no good at sports and won't stick with anything for long. Besides that he's a...