• A pixel art animation illustrating an H life with your schoolgirl classmate!

• Enjoy Story Mode where you have sex in different locations with your lust-filled classmate,
  or enjoy a "Daily Life" mode where you can freely enjoy yourself.

• Costumes include uniform, gym clothes, swimsuit, maid outfit, nude, and more.
  Each has their own motions.

• Have sex in the gym storeroom or the infirmary, or at home.
  Different sex situations are unlocked under special condition.

• Due to issues with the graphics driver or operating system, the game may not play properly.
  Please check system compatibility via the demo mode.

https://www.dlsite.com/maniax/work/=/product_id/RJ304412.html

The exe causes a false positive with security systems but its fine, just set an exception.
https://www.virustotal.com/gui/file/f7fc7905dc84b8913358c4443a030045d24e025c85b4d566c2e0b01f69cb85f5/detection