Siluman Fantasy

Story "Minoru" is a regular NEET guy living in a crummy apartment paid for by his grandfathers inheritance. He was perfectly content to waste away in those four walls until a particular package with no return address arrived at his door. Inside is a strange device and a message from his grandfather. In a flash, he got abducted and sent to another world filled with monsters and women. Now he must collect the Lust and Libido energy from monster and the girls to find the truth and make his way home...