Declining birthrate and aging population. Declining birth rate.
Research was conducted to find a way out of the childless situation.
Vigor, the number given to the most erotic male and the most erotic female is
It represents the hierarchy of the human race!
The main character was living a boring life.
Suddenly he is recognized as the best male in the world.
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13 basic CGs
Total CG 131 pieces
Difference without text PDF included
