【The Last Resort】Playing with a boy—? A shy girl with glasses and her ex-teacher’s mom won’t let me sleep!

Synopsis
A day in August
I’ve been a tutor to a girl named Karin Shimotsuki.
He confessed that he wanted me to go out with him. I said I’d go out with him.

I thought it would be a game, so I casually became his girlfriend.

It’s a big mistake.
She was ignorant and was influenced by her classmates who were engaged in papa activities.

He would practice sexual things on me, his girlfriend.

And then her mother, Kasumi, joins in.
The Shimotsuki family is now in the midst of a major upheaval.

The characters

Kasumi Shimotsuki — A 38-year-old widowed female teacher. She lost her husband shortly after Karin was born.
She was the former homeroom teacher of the protagonist Takeshi.
The reason why Takeshi became Karin’s tutor.
I just assumed that he was after my body.

I’m living in a state of confusion.

Karin Shimotsuki — Kasumi’s only daughter. She has a pure personality.
She is the only daughter of Kasumi.
experience without understanding its meaning and taking it into account.

He puts it into practice with Takashi, who becomes his lover.

Takashi Katayama—24 year old male graduate student.
Five years ago, I registered on a tutor recruiting site.
By chance, Karin Shimotsuki, the daughter of my former teacher Kasumi
I’ve been waiting for this for a long time. Since we have known each other for a long time
Karin calls him “big brother" and he is very close to her.

16 basic CGs
104 pages of the main story
Various differences total 176 pages
Standing pictures, 2 basic types (+4 diffs)
Note
There is a description of childbirth.