Porn Game: Restoration Times v1.0.0 by XRinguRNGX

Overview:
“2000 years after the earth suffered a mysterious catastrophe that turned part of the world's population into violent monsters, humanity is once again rising from the ashes and is slowly beginning a stage of restoration where it seeks to eradicate the remaining monsters in order to create a society similar to the one that existed in the past. He plays the role of Hitoshi, a young man who together with his sister Asami are dedicated to hunting monsters to fulfill missions of the Restorers Guild and keep the place where they live in peace. While Asami has the ability to imitate other people's powers, Hitoshi has the power to capture monsters and return them to their human state to summon them as allies. Currently, the protagonist can summon three demon-like girls as allies to help him.”​

Restoration Times v1.0.0 by XRinguRNGX game preview

online.