【Grep Soda】A story about a sister who has no experience with H and her first experience with her brother

One day, Akari, my best friend at school, tells me that she and her boyfriend have been having sex.
I have no experience in this area, so it’s none of my business.
I thought so.

I can’t stop thinking about it when I go home and see my brother Haruto.
The things they said about me at school.

[Haruto, do you know what sex is?]

At first I thought I was just teasing her, but then I couldn’t stop myself…

I’m sure you’ve heard of it.

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Volume Description

-11 basic CGs +(2 rough images of the character’s initial standing + 2 cut-ins)

-Image size 1600 x 1200 wide x 1200 high

-39 images of the main story (about 23 images of the differences)

-35 images with no text version

-74 total CGs

Character Design – Original Drawing: Aki Natsuki
Scenario:Ren Hiiragi