Based on the erotic game by Alice Soft. 
 
Kinosaki Mao lost his mother since middle school, and living with just his father Hajime.
But his father too, suddenly left him at the same time he's enrolled in university.
Leaving only a note that told Mao to not worry about him. 
 
Then 4 years passed, near the end of Mao's graduation, He's still not able to get over his mother's death, and developed Gynophobia disorder as a result. 
 
And then one day.
His father Hajime came back home bringing his new wife.
His new wife Arima Shiori, even more than her beauty, her character too is impeccable, she was an ideal mother indeed.
Bewildered Mao, began to live a sudden life together with a new mother.
Shiori is wrapping Mao with her cheerfulness and kindness. 
 
While coming in contact with her, Mao is gradually attracted to her as a woman rather than as a mother.
The action Shiori takes after becoming aware of that, is......

Based on the erotic game by eRONDO. 
 
Set in a rural town, Kouta is the only son and heir to the Mikomori shrine in the small redeveloping town of Tsumagoi-chou which had been declining in popularity. He didn’t have any interest in inheriting the shrine. Instead, he focused on his studies, aiming to be a civil servant upon graduation. His widowed father talked about marrying a young girl, but then he suddenly disappeared. That girl Erina came to live with him, along with her younger sister Motoka. With the help of his childhood friend Mio and a few supporters of the shrine, they managed to continue living normal lives. One day, Erina brought home a girl Mai, who called herself his fiancée. One thing led to another, culminating with Erina ordering him to get her pregnant.

Based on the erotic game by Alice Soft. 
 
In the late 21st century, humankind came under a fierce attack from aliens who suddenly appeared via wormholes. They were helpless to fight against them and resigned themselves to imminent death. At that time, an ultimate weapon which could create items out of imagination was discovered in a expansive cave under Japan, along with its young master Ryuusei who was in cryostasis. The indiscriminate alien attacks awoke him and he led the humans to a decisive victory. 
 
One year later, while the areas which had been destroyed by the aliens were still being rebuilt, Ryuusei was appointed as the commander of the newly-formed Defence Force of Earth, which was created to fight against space invaders. However, he was the only person who could use the ‘imagination embodiment device’. If something was to happen to him, then calamity would befall the world. So the Defence Force of Earth decided to recruit girls with potential to fight alongside him. Even though they hesitated at first, they each had their own reasons to join Ryuusei. Thus, the special force ‘Blade Briders’ was formed, to protect the Earth against the aliens who have returned. 
 
(Source: Visual Novel Database)

Based on the erotic game by Atelier Kaguya Bare & Bunny. 
 
Main protagonist Satoshi Ashifuji is a working student attending university under a scholarship.
Somehow, he ends up with the custody of the dormitory Kissuisou, but its residents are all women with big problems!
Furthermore, when fixing the dorm's clock tower, a self-proclaimed Zashiki-warashi who calls herself Ibaraki appears, beckoning even more trouble. 
 
With all those currently residing emanating such ridiculously negative auras, if nothing changes within half a year some terrible misfortune would befall the dorm which would get demolished regardless of its condition.
If that happens, with no place left to go, all that negativity would pile themselves onto Satoshi, paving a future life of hell for him. 
 
To avoid such a disaster, Satoshi decides to inject some positivity infused with Ibaraki's powers into the lives of the residents. 
In other words, it doesn't matter where they do it as long as he comes inside! 
 
In this way, the overly reckless ejaculation strategy with regards to the dorm's residents Satoshi bet his life on commences. 
 
(Source: Visual Novel Database)

A young assistant finds himself surrounded by hot office ladies so he thinks his dearest dream just came true, but soon he realizes that -more than a harem master- he is like the office sexual toy.
 
(Source: Anime News Network)

One day, Daisuke, a reporter, visits an old Western house on the hill. There are Sumi, the owner of the house, and her five daughters. "You are a selected man. Yes, you can make a baby with my daughters and get everything here...." Though Daisuke still can't believe it, he starts staying at her house. Erotic and deep relationship with the sisters.... What is the secret of this house? What will happen to Daisuke? 
(Source: Eroge Shop)

Based on the erotic game by Orcsoft. 
 
Sanae is the wife that anyone would be jealous of. She is young, very sexy and gentle. 
 
However, after 4 years of marriage, her husband worries if is he good enough for his wife. For a long time he is not able to have a sex with Sanae, but she never complained about it. He starts to think of way to make his dear wife happy and finally asks for his friend to have a sex with his wife. While he's secretly watching his wife with other man, he starts to feel incredibly stimulated...

Based on "Fighting of Ecstasy 2009" (erotic game) by Crimson.
 
(Source: Anime News Network)

After answering the summons of Momoka, the school nurse, the protagonist is forced to engage in various sexual acts with her. 
Later, the protagonist accidentally witnesses Momoka's younger sister, Maron, masturbating. He is discovered and Maron counterattacks by stripping him and giving hand and foot jobs. One thing leads to another and he ends up taking her virginity. 
Finally, the three of them go to a public bathhouse and end up in a threesome play.

G-lam