Kenta was worried. His father's new wife, Rui, is a hairdresser who runs a small hair salon. She is actually closer in age to Kenta than his father. But that's not the problem... With her flashy blonde hair, revealing shorts and bare legs, and a carefree attitude that makes it hard to believe they are mother and son... no matter how you look at her, she's just a gal!? Kenta has become so conscious of Rui as a woman that it's almost unreasonable to expect her to see him as a mother, and while Kenta is getting his hair cut, his crotch gets hard under the cloth... and Rui finds out that he's still a virgin!