Nacchuushou - Yuka no Yakata v1.02 - Adult Sex Game

OVERVIEW:
Once again, because of Kappa's (Nitori) defective machines, Yuuka, and a middle aged man filled with lust are both trapped in a distorted space...
In order to return to their original world, Yuuka must gather 4 crystals by solving each levels' puzzles to open the gate that will send her back to her sweet mansion.