Kankin Shoujo [Re:birthing]

"Every day after 7 p.m.
I saw her on patrol... Minami-chan.

Nobody else for miles, a pretty girl in her schoolclothes.
It was dangerous... so very dangerous...
She bobbed home from tennis club. Medium length hair, tinted like tea.
Ahh, that fresh face, that translucent voice.
Her figure was slight, with small breasts that promised development to come.
Minami-chan, you are so defenseless......
Don't you know someone could be stalking you?
I have to protect you...

I will...... protect......"

Premise:

The protagonist built a makeshift prison in his remote house
for the day he chose to bring a beautiful girl home.
In the time he'd made his choice, his feelings had grown twisted.

In a story that spans six and one half years,
Kankin Shoujo [Re:birthing] is the sex training of a kidnapped girl
by various implements. There is no escaping this place......

As a part-timer with a routine, the protagonist works
and sleeps, works and sleeps, and in the meantime, he can
cultivate a relationship with his captive.

Where will it end......?

[From DLsite English]