Based on the adult game by Marine. 
 
Kobayako Ayano is frutated because her breasts do not grow as big as her teacher. He has done various ways but still not as big as his teacher's breasts. Once he knows the secret that can enlarge the breasts as big as him because of the blessing of the actions of his younger brother's teacher who every day massaged her breasts. Since then Ayano also wants to try to enlarge her breasts by asking for help on his younger brother's teacher. 
 
(Source: Translated and Edited from Nekopoi)

Based on the erotic game by Marine. 
 
You play an average joe who one day receives a special camera from a mysterious, massively-endowed girl in a bunny suit. This camera has the ability to make any girl photographed with it unbearably horny, deepening their erotic agony with each picture you take. And when the sexual tension finally boils over, the only way to quench these uniformed vixens' thirst is by having them service you with their enormous breasts! 
 
(Source: Visual Novel Database)

Based on the erotic game by Marine. 
 
Kyuutarou works hard everyday at a TV station as an assistant director. However, his life changes when he agrees to take part in a new TV program with Aya -- who is a famous TV presenter; but she constantly mocks him. 
 
One day, Kyuutarou plots revenge by secretly adding his sperm into Aya's coffee. She drinks it, not knowing, then after work she asked him: "What did you add to my coffee? It had a different taste." He was embarrassed but admits it. 
 
Surprisingly Aya responded with: "Today I felt great. I did not think such a coffee would help...". Thus begins Kyuutarou's life with a beautiful TV presenter.

Based on the erotic game by Marine. 
 
Shin belongs to a cheer group. Though he wasn't interested in it, Yuko, his older step-sister, forced him to join it.... As a matter of fact, there are only two members, Shin and Yuko. On the other hand, a cheerleading club has a lot of members. One day, Shin accidentally collides with Chieru, a member of the cheerleading club, and she gets injured.... In compensation for her injury, he decides to work as a caretaker of the cheerleading club. But days later, Satsuki, a coach of the cheerleading club, suddenly orders the members, "You should give him a titjob to overcome your sense of shame!" As they are all confused, Satsuki starts giving Shin a titjob...! 
 
(Source: Erogeshop)

Based on the erotic game by Lune. 
 
The protagonist - Yuuichi - fails the entrance exam and is currently attending prep school. 
Around this time, his father, who is almost never home, remarries and his family gains new members. 
 
The mature and alluring mother - Mifuyu, her gyaru eldest daughter - Natsuki, and subdued second daughter - Akiha. 
Yuuichi wants to welcome the new family, but living together with 3 women is too titillating. 
Together with the stress of examinations, it becomes impossible to suppress his libido. 
 
And then, a mysterious package arrives. Inside is a strange penlight that has the ability to put anyone under hypnosis. 
But it can't make people do things that they don't want. 
Thus, Yuuchi first begins with "getting along as a family", and gradually, the orders become more extreme. 
 
Moreover, he wants the women to bear his child in order to become a real family. 
Additionally, the mother daughters trio, filled with carnal desires, also begins to seek for more pleasure... 
 
(Source: Visual Novel Database)

Based on the erotic game by Marine.
 
On March 22, Saturday's summer holiday Shun was told to go back to his Nee-chan home to do something. Perhaps Shun thought he would be made into a toy By Nee-chan. And by the time Shun comes home, Nee-chan tells Shun because they get an unknown disease that's Idiopathic Estrus Syndrome, that causes his sister to feel the heat in his body that is out of control and the only way to cure the disease. They have to Regular intake of male sperm. And the romance relationship between Nee-chan and Shun begins ...
 
(Source: Nekopoi and Has Been Translated and Edited)

Juicy Mango