After his parents passed away many years ago, Yuuji Enomoto was adopted into the family of his childhood friends Yuna and Nina Tsubakihara and their mother Mira. Now in high school and known as Yuuji Tsubakihara, he lives under the same roof as a pair of cute twins and a beautiful older woman. Although the shy, reserved Yuna and the outgoing, talented Nina are his family, Yuuji submits to his desires after witnessing Yuna turn down a confession. But as Yuuji and Yuna finally consummate their lifelong love, can Nina and Mira stand idly by? [Written by MAL Rewrite]

Minato’s last blood-relative, his grandmother, passed away and now he is all alone in this world. He thinks about how he was blessed to have family, but dryly laughs about how he’ll need to take care of himself now. However, during the funeral of his grandmother, someone named Kazari approaches him and offers to admit him into a prestigious school, in addition to providing him a place to reside. Minato immediately and thankfully takes up on this offer, but soon realizes that the Suzu Academy is an all-girl’s school, and the “ojou-sama” that he’ll be residing with has flaws of their own which really shattered his expectation for a high-class lady. (Source: VNDB)

Based on the manga by Yuzuki N’.

The other day, when I was reading an adult book, I thought, “I can tell whose breasts they are by just looking at them. Well, am I a king of oppai?” However, there was no way to prove it…. But one day, I receive a letter and it includes a bunch of free sex tickets! Also, the reverse side of each ticket has the photo of someone’s breasts. When I’m confused, a girl, Nil, appears in front of me. According to her, I’m qualified to take part in a game. It seems the tickets aren’t fake. My mission is to look for a girl who’s got the same breasts printed on the ticket. Like this, my search for oppai begins…. (Source: ErogeShop)

Based on the game by Bishop.

Jun and his teacher Katsuko Kurose are in love with each other. One day, Kazuya Shinohara sees them together in a classroom and blackmails Katsuko to have sex with him. She begins to enjoy it more and more. Will she hold on?

Nanami is a happily married woman until one day the landlord blackmails her with some embarrassing video footage. From then on she has to become his personal sex slave or he will show the footage to her husband. Based on the erotic game “Sore de mo Tsuma o Aishiteru” by Lune TeamBitters. (Source: ANN)

Based on the doujin manga by Kemigawa.