You are professor Hitosuji, a well-known teacher who possesses the remarkable gift of turning weak students into straight A ones. What's the secret of professor's method? As you might have suspected, the talented professor uses somewhat... ahem... unconventional means to attain this noble educational goal. This time, the "victim" is a young innocent girl named Reiko Shirakawa. She attends an all-girl and has never had any real contact with men. Controlling the cunning professor, you must seduce Reiko by selecting correct choices that are presented to you at almost any given point, avoiding disturbances such as the ugly housekeeper in Reiko's house.

Yuu Asakura was a mild mannered university student until he found a mysterious duffel bag with a gun and orders for an assassination. He was terrified at first, but when he held the smooth metal of the pistol in his hand, he started to become someone else. Capable of anything, Yuu takes the assassination job and enters a world of nonstop sex, blood and guns. When he returns to school with his newfound abilities, he finds it no trouble at all to get any girl he wants. The syndicate and the police want a piece of the new guy, but the one Yuu has to worry about is the gun's original owner.

The story follows a day in the life of a futanari girl with various indecent acts she commits in order to temper her uncontrollable sexual urges.

We are all not what we seem to be. Although we don't want to consider the possibility, there is a certain darkness lurking inside the hearts of all of us. If it is brought out through great pain, then terrible things can happen.

Mizuno Yousuke is a young Japanese man. His life hasn't been very happy ever since his mother's untimely death while he was still a child, his father's remarriage and then again his untimely death in a recent car accident. Yousuke now lives with his beautiful step-mother and her quiet, reserved daughter, and although he has known great pain, it seems that all the women around him are striving to do all they can to ease his sadness. Perhaps it was all these sad events that caused his darkness to come out...

Sakuragi Takuya has recently moved to Tokyo in order to start his college studies. Conveniently, his cousin Takashi and Takashi's wife Ms. Silk live in the same area so Takuya has moved in with them while he is attending his classes. In exchange for free accommodation, Takuya started working as a part-time waiter at his cousin's cake shop.

One evening, while they were having dinner in the living room, a beautiful blond woman appeared before them out of nowhere. Soon, it was revealed that her name was Silk, the same name that Ms. Silk had, and that she was a trapped mage that was cursed to travel through alternate dimensions, never being able to return to her homeworld. Silk has informed Takuya and the couple that she needs a large amount of female elemental nature life energy to power up the spell that would return her to her own dimension, so she wants of Takuya to go out and seduce various women around him in order to gather the necessary sexual energy. To assist him in this task she has enchanted him with superhuman charism that will allow him to woo any women he desires.

And so Takuya's ordinary life became ordinary no more.

Life in the medical world can be interesting. Shortly after finally attaining his dream of becoming a doctor, Nakagawa Shinobu is asked to transfer to St. Michael's Nursing School as a substitute teacher. Since the person asking him to make this transfer is none other than Maioka Kaede, the first woman he ever fell in love with and also his own foster mother, how could he ever refuse?

The nursing school is full of young, beautiful nurses-in-training, complete with the cutest nurse outfits out there. Despite his desire to be a professional, Shinobu knows old feelings can be sparked back up with just a simple hit of a switch... making any kind of professionalism a thing of the past.

My name is Aoyama Kouji. I'm an ordinary guy living an uneventful life as a university student. Because my parents are separated, my uncle, a somewhat strange man who runs a restaurant, has taken the role of being a father to me. Although it's hard work, I actually like helping out at the restaurant from time to time.

One day, while walking with Himeko, who I've been friends with since childhood, I was hit by a car and nearly died! Thanks to a miracle, I awoke to find myself in a hospital bed in America. After some bizarre adventures, I return to Japan and decide to move into my uncle's house where I can help him run his restaurant.

Imagine my surprise when several beautiful girls approach me to tell me how happy they are that we'll be working together. First, there's Himeko, who tells me she'll do anything for me, followed by Chizuru, a beautiful girl who lives in the neighborhood who wants to shower me with attention. Takano, a gorgeous girl from my class, also confesses her desire to do anything she can for me, as does Leo, the quiet girl who lives and works at the restaurant. At first I think they're just happy that I wasn't killed in the car accident, but gradually I realize that they've all fallen in love with me for some bizarre reason. The girls are spending every moment they can, taking care of me and giving me all their attention.

Am I the luckiest guy in the world, or what?

Young Hiroki has been sick all his life. His father died when he was young, and his mother is distant. Even with all of this, he thinks of himself as a pretty normal guy, except that he's completely dependent on his childhood friend, Ayano, who enjoys taking care of him while his mother is away.

One day, Hiroki's mom calls and tells him, "I'm hiring a 'private nurse' for you", but Hiroki strongly objects. He doesn't even know what a "private nurse" is, but he knows he doesn't want one ... until she's standing in his doorway, dressed in a sexy nurse uniform.

"Hi, I'm Maria. I'm your new private nurse!". She promises to cure Hiroki of his disease within a month. While unbelievable, he tentatively accepts and the treatment begins. Her methods are very "hands on", and Ayano watches with mixed feelings as Maria treats him. As his treatment intensifies so do feelings of love and jealousy. What kind of treatment will Maria use to finally cure Hiroki, and will Ayano just quietly watch and do nothing?

A story of revenge.

Hanachirasu is set in a parallel timeline where nuclear weaponry was never developed. As such, Japan continued to fight through World War II, ending aggressions only when Hokkaido and Kyushu were occupied by Russia and America, respectively.

The game itself takes place in early 21st century Tokyo, which has been transformed into a haven for Japanese culture thanks to the nationalistic ideals of the charismatic Ishima Kaigen. Strict policies are in place in to enforce a ban upon firearms within the city limits. Thus, though terrorism and power struggles run rampant, swordplay, not gunfire, claims the lives of those not powerful to stake out their claims here.

Our protagonist is one Takeda Akane, a swordsman driven by a desire to face his one true rival, Igarasu Yoshia. What will stand in his path to his goal?

Eiji is a priest at a catholic school for young nurses. Well, he's not really a priest -- while traveling in Europe, he learned how easy it was to impersonate the clergy and what fun it could be. Ever since those days, he's enjoyed the unique life in the Church, even after returning to Japan.

When a panty thief helps himself to the underwear in the girls’ dorm at a school for young nurses-in-training, Maria asks him to help put a stop to it by moving into the dorm himself. Although he tries to be the best person he can be, the thought of living alongside all those young nurses-in-training is enough to really get his juices flowing.

The Kirishima family holds the long standing tradition that the head of the company must train and maintain a sex slave as an obedient partner. Young Masato must find and train a female slave to take over his father's position as CEO of the group.

Masato's father has left his slave (secretary) to help young Masato to find a suitable candidate. Masato turns to his classmates in hopes of finding a suitable female sex slave. Three girls rise to the occasion. He must put those girls through intense training so he can choose the best one. Your choices help Masato to find the best female sex slave.

Giniro is a beautifully crafted fantasy tale comprised of four chapters. It is a bittersweet story of the legendary Silver Thread which is fabled to grant any wish to its holder...

The main character is a senior who attends Rinin High School; the only school among the mountain town of Rinin City. The main character, who is the student president of the high school, has another hidden persona. The persona as head of the “Gang Rape Club”...

A dark ceremony existed that had been handed down for thousands of years in the old town of Rinin; the name of the ceremony, in particular, in the oldest of records. That ceremony, enacted to protect the region from disease and crop failure as a curse from the region's guardian deity, Hime Iwanaga, occurs in the evenings between the new moon and full moon, in which a maiden is disguised as Konohanasakuyabime and gangraped to appease Hime Iwanaga's anger. In regards to the maiden, there must be an important man participating in the gang rape, in other words, that man must be related in blood to their wife or lover, mother or daughter, younger sister or older sister, and the like, and after the gang rape, if a pregnancy occurs, Hime Iwanaga's anger is abated, and a good harvest and safety upon the region will be promised. However, if a pregnancy does not occur for the sake of suppressing Hime Iwanaga's anger, the maiden is supposed to be covered with semen, and floated down the river alive, as a sacrifice.

And now---After the Tashio era, the ceremony itself had vanished into the dark history, but had still continued on at Rinin High School; the cruel, improper traditions being inherited over into a secret society through actions carried out by the Gang Rape Club. For generations, the student president of the High School has served as the head of the Gang Rape Club, not allowing even one day to pass uneventfully, submerging numerous women to the dark, suffocating pleasure.

You are Kira Akishino, an ace student from one of the best universities in Boston. You are offered a tutoring job at the illustrious Gloria mansion, along with your friend Georg. The Gloria family has long been one of the wealthiest and most prominent empires, and they need you and Georg to tutor one of the five daughters. Georg is immediately taken with the eldest daughter -- the strong-willed Etana Gloria, which leaves you with four others to choose from. There's Sicile, who has the worst grades of them all; Mary, the naive golden-haired angel; Naomi, who cares about nothing else but drinking; and Charme, the most brilliant one of the Glorias. But there's something more to it all... the Glorias are hiding some things, and it's up to you to find out what they are. Will you be able unlock the family secrets? Or will you just be a good tutor? Who knows, you may even end up marrying one of the Glorias...

A Bizarre Serial Murder Mystery. There's A Serial Killer Close By. A Prohibited Psychothriller. The Multi-Sight System Reveals Surprising Truth!

In this game there are two heroes, Kojiroh and Marina, who are each called to solve their own cases. This game allows you to switch characters at any time to solve the mysteries these heroes encounter. This "Multi-Sight Adventure" allows you to view what's happening behind-the-scenes from the other character's perspective, bump into each other, and sometimes even help each other out. Together, they come closer and closer to the shocking truth through their combined actions and skills of deduction.

Marina's Episode: Marina is a national intelligence agent with a 99% success rate. Her new assignment is to protect the daughter of a Japanese embassy official stationed abroad. As you encounter numerous attackers, you become aware of a dangerous government dispute that is the root of all these attacks.

Kojiroh's Episode: A seemingly down-on-his-luck private investigator finally gets a break, as he is hired to locate some mysterious piece of art. Even though he feels a little weird about this case, the pay is huge! Yet he may be drawn into an unexpected nightmare involving a string of bizarre murders.

My name is Yusuke Yagami. When I was a boy, I witnessed something which no one should ever see. My own mother, locked in the throes of passion with a man who wasn't my father. Her adultery caused our happy home to come crashing down, and my father divorced her. Since those dark days, I've been mistrustful of what the concept of 'mother' really was.

Now, after so many years, my father remarried, and suddenly, I had a new stepmother, or Gibo.

The woman my father married was not old, but young, and beautiful. When I looked at Misako-san for the first time, I felt something move inside me. As the days went by, I found myself thinking of my new mother in ways that shocked myself. Could I accept this beautiful woman as my mother? After all, I found out what mothers are really like the day I saw their unfaithfulness. Punishment may be necessary...

One's story revolves around Kouhei Orihara, the main protagonist, who suspects that at some point his current life will change while living a peaceful daily routine. Due to this, he begins to seclude himself in the Eternal World, a world within his mind. The game's main recurring motif is a focus on the Eternal World, a mystical alternate space which is never clearly explained, and the details of which are unknown.

I always knew my father wanted me to have a good life, but I never thought he would go this far! It seems that behind my back, he and three of my female friends have decided I need a wife! So they have concocted this plan: the three women will live with me and compete to become my wife. They are going to clean for me, cook for me, and who knows what else??? And I must choose which of them I like the best to be my wife.

Life is definitely going to get interesting…

I'm Yujiro, an average student at an average private school. On the surface, our school is a reputable one, with some of the smartest students in all of Tokyo. I've recently learned a secret though: the girls who win the annual Miss Twilight beauty pageant are secretly being trained as sex slaves to be sent out to service VIP members of society. The dream of every girl at our school is to be chosen as Miss Twilight: she's beautiful, charming, and liked by everyone, but the three lovely contestants for the title this year have no idea what awaits them if they should win. Now that I know the secret of the Slave Pageant, I can't just leave things well enough alone. After stripping the student council president of his authority, I decided to train the lovely girls myself...

Wanting to forget bitter breakup with his dear Sumika, Takatsuki Kazuma chose the farthest place he could to run to: Europe. There he learned about wine and how to serve it with style, and eventually became employed as an expert sommelier at fine restaurants. After several years of this lifestyle, he crossed paths with his former love. Sumika had grown even more elegant and beautiful since they had been together. Their meeting brought back all the old memories of their love. When she told him that she'd been made manager of a new high-class restaurant, he found himself agreeing to work there before he knew what he was doing.

Upon his return to Japan, he prepared himself for his new employment at "Platinum: Oceanside", a very special restaurant which offers superb food, an elegant atmosphere, and to his surprise -- incredibly cute waitresses who dress in sexy bunny girl costumes! Luckily for him, these aren't just your average bunny girls. They're extremely horny, and aggressively approach Kazuma to have their desires fulfilled.

In the early 21st century, a sudden shortage of food and energy sparked World War III, a massive conflict that saw the deaths of millions and brought the population of Earth to 15% of its prewar level. Years later, an uneasy calm has descended on humanity, although a state of war still technically exists. Four power blocs that share control of the Moon and the earth, each looking for a weakness they can exploit against the others.

You are Captain Leiji Osumi of the Free Alliance Space Force, formerly a fighter pilot in the War. Your past is haunted by a terrible incident that caused you to change careers, transferring to the top secret intelligence division. When a series of technical problems on the Free Alliance Moon Base D-02 hint at sabotage, you are dispatched to get to the bottom of things, under the cover of "Technical Advisor."

The military learned long ago that women are better adapted to lonely assignments in space, and so the base is staffed almost entirely by females. Arriving at the base, you discover that an inexplicable sexual insanity has gripped its normally professional staff, prompting further investigation. Are these strange occurrences connected with the sabotage somehow? You have to untangle the mystery and get things back on track before one of the other power blocs notices that anything is amiss and tries to attack.

You are Yusuke, a Japanese youth about to enter college in Tokyo. When your father suggested that you live with the family of a friend of his while you attend school, you didn’t really have an opinion one way or the other. Until, that is, you found out that the Sagara Family is comprised of nothing but women: four beautiful daughters and their sexy widowed mother!

Of course you don’t mind the prospect of living in a house full of beautiful women — you are a man, after all. The trouble is, they’re not used to having men around, so they don’t know how to act around one. This will no doubt cause any number of interesting situations to pop up as you get used to living with these beautiful women.

Life is pretty good when you get assigned to manage the careers of two superstar idols! You are put in place to countermand the rebellious tendencies of these stars' previous manager, and you have all the power!

Beautiful women surround you now, all at your beck and call! Do you feel like seducing your lovely assistant, or maybe the sexy ex-idol co-manager is more your style? And of course, don't forget your two superstars. Their careers are in your hands, and surely they are grateful for that! Now what could these gorgeous girls possibly do to repay you?

The story follows a young girl named Amasawa Ikumi who follows the recent death of her mother to an organization known as FARGO. Ikumi joins FARGO and uncovers their disturbing nature of harnessing psychic abilities through torture.

The apocalypse known as "The Third" occurred as a result of mankind's tasting the deadly fruit of nuclear technology. The massive radiation released in the holocaust of world war mingled with the genetic fallout from biological weapons, creating horrific mutations that came to be called "Yoma". These beasts bred in the bodies of humans and multiplied, covering the blighted landscape and pushing humanity to the brink of extinction.

It is now the year 2048. As mankind's final gamble in the struggle against the Yoma, a squad of genetically engineered cyborgs was created - the A.S.S.P. Its members posses combat ability far beyond that of normal humans, and have been programmed with the complete database of anti-Yoma strategies and tactics researched over years of war. These female biosoldiers have become humanity's last line of defense against total annihilation, and you have been chosen to command them.