Part-time housewife Yui was reluctantly invited by a female friend one day to go to a store called "Muscle Bar." Muscle Bar" was a shop with such a concept that so-called Macho young men who walk half naked and show off the muscles of trained mukimuki without hesitation. Clothes that receive customer service while having trouble with the place of eyes. To be honest, I have been moistened by the macho muscles of a man.