Succubus Chase ~A World Where Drinking Semen is the Norm~

Humans have been gone for five hundred years, and the succubi who used to live off them are running out of stored semen fast. A protagonist gets yanked into this dried-up world by summoning, and from the moment he lands, the hunt is on.

The setup is survival by desperation: the succubi ration what little they have left, but it's not enough, and a fresh human means a fresh supply. The story follows the protagonist's attempt to stay ahead of them and find some way out before he's caught for good.

Play centers on that chase, staying one step ahead of a corrupted, husband-hungry cast of monster girls while the world itself works against him. Encounters lean on female domination and group pursuit rather than any real combat system, so the tension comes from whether he escapes or gets cornered, not from stats or gear.