NTR Hunter Hisako Secret

In a world thrown into chaos by the spread of the H-Virus, a dangerous infection that unleashes primal instincts in men, Aiko embarks on a perilous journey to restore order. As society crumbles, she ventures from her village to uncover the virus’s origins, battling infected individuals and a sinister organization behind the outbreak. Using her martial arts skills and combat prowess, Aiko faces intense challenges, dodges attacks, and searches for a vaccine to save humanity.

One day, Tachio, an ordinary office worker, is suddenly transported to another world overrun with dark monsters known as Yamimon.
In this strange world, he is attacked by Yamimon, but is saved by the beautiful dark hunter Kurenai, with striking red hair and large breasts.
However, the moment he comes into contact with Kurenai,
he fuses with her special battle suit, Gear.
Thus, Tachio fights alongside her as her suit during battles,
while searching for a way to return to his original world (while being made to take care of everyday things at home).

A simulation game where you can steal university students, wives, and girlfriends!
 
The main character, a former teacher, was working part-time and struggling to make ends meet when he decided to become a tutor. His first students are his relatives and neighbors.
 
The main character's niece and first student. Her grades aren't very good, so her father sent her to Hiroshi so that he could tutor her.
 
The neighbor's only daughter, and is currently dating Hiroshi's son. Despite knowing her for a long time, Hiroshi still feels intimidated by how pretty she is.
Will he be able to resist her beauty?
 
Kaede's mother and a housewife. She has a rather withdrawn personality but is well known in the neighborhood for her beauty. Recently, she has been feeling frustrated because her husband has not been giving her enough attention. Will Hiroshi be able to comfort this lonely wife?
 
A university student. She moved in with her boyfriend about a year ago, as her university is located not too far from the neighborhood. Has been having trouble with her assignments lately.
Is this the perfect opportunity for Hiroshi to have his fun with this busty student?
 
Kaede's classmate and best friend. She has a crush on a teacher and is often seen with him. Will Hiroshi be able to put a stop to this scandalous relationship?

Life is good right now; you are enjoying your days playing VRMMORPG with your girlfriend and going to dates with her. One day, however, you met Inoda, the owner of the rare “Stealth Veil” skill that has the massive drawback of heavily weakening his character in the VRMMORPG you are playing.
 
You and your girlfriend decided to help him out, but that decision would soon turn sour as Inoda slowly encroaches into your daily life…

The protagonist is an ordinary high school student who has a crush on a classmate named Shiozaki and is thinking about confessing. However, one day, a handsome Senpai appears near her and starts to pursue her.