Etou Kai may look like a squeaky-clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. With his stoic partner Kurabayashi Hal, Kai i...

Miyoshi is always competing and losing against his childhood friend, Mamiya, who is good at everything. One day, Mamiya collapses from illness and is hospitalized for several weeks. When he returns to school...

A young prince falls for the Emperor's youngest daughter, and asks for her hand in marriage. When she refuses him, he disguises himself as a swineherd to win her heart and to test her personality. Will he su...

Baby can’t get promoted. He’s been languishing as the most junior member of his team for years. When he gets a new boss, he’ll do anything to suck up to him and get noticed. But this new boss is awfull...

Tamiya Nika is a beautiful, outgoing, popular high-school girl. She has just the right look, just the right fashions, and is everyone's friend. What everyone at school does not know is how hard Nika works to...

After being dumped by her boyfriend, Koyori went to her longtime friend Hijiri's house to drink away her sorrow...and ended up spending the night with him! Not only that, he tells her he loves her—and she'...

Choa is a mermaid who can't swim! Discouraged, she trades the ocean for a pair of human legs. But when the star of the high school swim team finds out her secret, he offers her the chance to prove her family...

Kohinata Ayumi is about to go on a date with her boyfriend Shiro, but then she gets a mysterious call from one of her classmates! Suddenly, she wakes up in someone else's body!?

Kei is a quiet student who doesn't really like adults or teachers too much. However, after getting to know her English teacher, she begins to fall for him.

Shuuhei, Harumi and Daiki start their second year of high school with an absolute goal: Getting at least two new members for their swimming club to keep its position as a club. This is the daily struggles an...

1-8 Swing Out Sisters Two sisters, one older and big-breasted and one younger but very energetic are competing for the body and pleasure or their younger brother. 9 Pirate Girl

1. White Temptation 2. Summer Jumbo Mizuho 3. Mizuho! Exercise! Sequel to "Summer Jumbo Mizuho" 4. 1+1 Girlfriend 5. Electric Trouble Play Now!! 6. Water Trouble Sequel to "Electric Trouble Play Now!!" ...

Due to a mistake at the welcome party, I ended up being the slave of a Sunbae from my university, but thanks to a remote control that I found, our relationship took a 180 degree turn. Sunbae, did you already...

A story set 5 years after the end of the main series. Hal and Kai reunited!

A few weeks after the events of Switch, Kai has returned to his former post and, despite suffering from partial amnesia, is well on his way to getting back into the swing of things. Hal, however, has turned ...

After an easy end to the battle, the Tadamune reports back to his Master. There, the young Master forces a mysterious drug into the Tadamune's mouth. What will the Master do to the Tadamune? NOTE: Bruno GmÃ...

In recent years, more and more girls are experiencing the development of "tertiary sexual characteristics" during the later years of their puberty -- that is, the rapid masculinization of a certain part of t...

Things in and from the past still affect the present.

Honda is on the swim team while his high school senior, Momotani-senpai, acts as his private coach after quitting swimming. One night after they get drunk together, Honda finds Momotani wearing a woman's swi...

Chiba Osamu and Arikawa Madoka are in the same middle school class and in the same swimming school on Mondays, Wednesdays, and Fridays. Although they have many opportunities to talk to each other, they never...

Tired of constantly being compared to his prodigious older sibling, Riku, Raimu decides to take him head-on by surpassing him in the field of basketball.

Miyasato Haruka, lover of video games and sweets, was going to spend her school days immersed in video games, when Ibuki, determined to bring back the Golf Club, appeared! Ibuki then dragged Haruka into play...

A bunch of school kids live in a world where people wear swimsuits all the time, as everyday clothing.

0. Extra Lesson H 1. Give You Me!! 2. Siscon: Sister Control 3. Nama Choco Tasty! 4. Stay with Miu 5. Kocchi wo Muite yo Onii! (Look This Way Brother!!) 6. Lesson H 7. Swimming Love 8. Fui no Ai (Unexpected ...