SPRD-434 - Rinko Kawaguchi, a housewife who is targeted by Mamachari

Rinko, a housewife, runs smoothly on the street on her mom's bike. And then there's a young man who watches Rinko mysteriously from behind as she rides her mama-chari... He has played pranks on her mama-chari in the past, and this time he was indulging in his fantasies while sniffing the scent of the saddle where she was sitting. The next day, after shopping at the supermarket, Rinko encounters a group of young delinquents crowding around her mom's bike. Rinko, who had her saddle taken away by them, begs for it to be returned, even though she is at their mercy. However, when the saddle came back, there was something attached to it that stood out from the sky...