Super Whisper! ~Secret Immoral Sex with Step-Sister Mutsumi Mutsuura Behind Your Family's Back~

Super Whisper!' Focus Points!

A Super Whisper series first! Sex with an "older sister"!

The entire project was recorded binaurally.
It's a virtual project that meshes the real world and voice-work together!
By using your smartphone or a portable audio player
and listening to this audio work inside your house,
you can enjoy a virtual experience that feels like you are actually living together with your older sister!

Do you want an older step-sister who loves you more than anyone else?
This audio work is for those who could not meet the older sister of their dreams in real life.

What if you were able to meet an older sister who spoils you to no end...?
What if she was willing to do anything for you...?

This project will make those fantasies come true!

Experience a story about nurturing love with your step-sister while keeping your relationship a secret from your family.
The most immoral and lewd story from the Whisper Series.
Please check it out with your own ears!