There is a dormitory at a private school for training high-class ladies, where students are trained secretly 'To Serve Men'.
However, one of the students got pregnant during the training.
To prevent this from becoming a scandal, the pregnant student was expelled and the dormitory was shut down in fear of causing another incident. Many years passed and now the decaying building is awaiting demolition.
The protagonist, the bastard child of the accidental pregnancy, negotiates with the current principal of the school using the story he heard from his mother.
He negotiates to reopen the dormitory, and work there as a manager.
He only has one goal in mind.
To drain the slaves he has raised and taste their milk.
So the dormitory known as the 'Mistress Administration Building' has been revived by the protagonist. The building will be transformed into the 'Slave Management Building; where the sounds of schoolgirls being trained and milked will echo throughout the night.
In the residential district Kamiitsukomachi's old shopping district lies Hibikino Shop. This general store closed down after the grandfather owning it finally retired.
His three granddaughters, attached to it, and unwilling to let it disappear, decided to renovate it.
Hibikino Shop, loved by its community since 50 years, under the pressure of Yukari, the good for nothing of an eldest sister, became... an eroge store!
Hibikino Shop finally reopened.
A store of this size being too much for only three sisters to handle, and with only Yukari to know about this peculiar kind of products, they asked the second daughter's childhood friend Kurama Ren, our hero, to help them, as a part-time worker.
This is a story about the eroge industry from the perspective of a salesclerk.
Minase ── an isolated island due to its poor accessibility. However, the protagonist used to go there a lot in his childhood.
After entering medical school, his parents were worried about him losing his edge due to the daily study schedule. They wanted to refresh him. The protagonist comes to the island again after being advised to visit his cousins during his summer vacation. He remembers his childhood with them, and being treated like a real family member.
Suiren was beautiful when she was a child, and she was very kind and was like a real sister to him. Shion was like a tomboy little sister and used to follow him around.
The protagonist wonders how the two of them have grown up. He can hear their voices afar from their house. Upon his arrival, he reunited with the two grown-up sisters.
Suiren has become a gorgeous woman with a beautiful feminine body overflowing with tolerance and kindness. Shion, who has grown into a pretty girl, has a somewhat disgruntled look and only talks to the bare minimum necessary.
An older sister who never changes and a younger sister who has changed. Feeling puzzled, as recommended by Suiren, who seems to have been waiting for the main character, the protagonist stay at their house for a while.
How will he spend his time with them on the island under the summer sun?
My hobby is solo camping.
Lately, I’ve been into staying in the car.
The company I was working for went bankrupt and I had a break for a while.
During this period of time, I was able to fully enjoy the life of camping that I had been too busy to do.
I had a lot of fun camping with my sisters who were worried about me after I lost my job.
Meet my twin sisters and sister’s friends who met at solo camp: ……
It’s the start of the flirting outdoor life that winds up in such a life recharging time.