Bishoujo JK Idol Kasumi wa 100-mannin no O-na-ho

Jun's boss gave him an ultimatum: create a fuckable hole that can be sold 1,000,000 times or he's fired.
It seemed impossible until his eyes fell on the popular high schooler who was now appearing on TV, and a idea came:
"What if I could somehow make a real stroke toy out of her..."

Can Jun make history with a real, regenerating virginal teenage pussy?

[From DLsite English]