Toshishita no Shinmai Succubus ni Sei Chishiki o Oshiete Age nagara Love Love Ecchi Suru Game

The JK Lily-chan moved in next door.
But she is actually a succubus who came to drain human sperm!

...However, this is her first job, and she hasn't even seen a penis before.
Gently show the virgin Lily-chan how to drain your cum!

[From DLsite English]