The current version is 3.01.
The flickering has been resolved, and a new event has been added.
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Story:

The protagonist’s little sister (Himari)
suddenly comes to live with him
due to where she is now attending school.

Himari crashes into this new life
while still being too trusting of her brother.
He shows her things he shouldn’t and acts like everything is fine.

Thus, her life living under the same roof as her brother begins.

Game Features:

All touching and erotic animations
are smoothly animated.

Once you’re close enough with Himari, you can
also ask her to do erotic favors.

Increasing intimacy is the royal road to success.

As you do various activities with Himari, your intimacy will increase.
So first focus on developing a good relationship with her.

Do that and you’ll gradually be able to do more.
At the start, not having your intentions found out is a must.