Daddy♡ Let's Make a Baby~ Whispering Sex with my JK Stepdaughter Yui-chan in Secret from Mom

Your spouse’s stepdaughter and a current high school student.
Because her daddy walked out when Yui was still very small, she has always wanted a dad and has been looking forward to meeting you.
Upon discovering that you and her mom aren’t having sex, she closes in on you, determined to make you her daddy and hers alone…♡

That day, after that stream ended──
With the support of a mysterious sponsor, an older sister and a younger brother, now a university student, are freed from financial hardship.
They were finally supposed to be able to return to a "normal life."
But one day, an "intimacy gauge" suddenly appeared above their heads.
It was a sure sign that their relationship was no longer "normal."
They cook dinner side by side in the morning, and cuddle on the sofa watching movies in the evening.
Their fingertips touch in a spontaneous gesture.
Before they knew it, their time alone together was getting longer and longer.
The "fictional love" they acted out in front of the stream camera quietly and surely transforms into "true feelings" in their everyday lives away from the camera──
 
Until the day they cross that forbidden line. These brother and sister's tender, little by little, passionate "romance sim" life begins now.

Ume-chan, who was called out unexpectedly, secretly tries out the cowgirl position at school after classes…
Ume-chan, who has excellent athletic ability, works hard and serves him.
Gradually, Ume-chan gets used to it.
Soon, she can no longer control her sexual desire and starts to act more intensely on her own…

The protagonist gains the ability to enter the world of video games after being struck by lightning.
He dives into his favorite games and has his way with the NPCs as he pleases…
This time, the world is both dark and beautiful.
What kind of erotic experiences await this time…?
You explore a small map, approach the girls, and engage in erotic acts.
It’s a short game, similar to a typical CG collection, but designed in a game format to enhance immersion.