A close pair of married women, Mina and Riho. Mina's husband is a sports club dickhead, and Riho's husband is an intellectual dickhead of the theoretical school. They are both satisfied with their sex lives, but at Riho's suggestion, they decide to try swapping husbands... And on the day that arrives, a swapping is carried out by the four of them, with their passion for sex at its peak. A serious match (real deal) to see which dick is better! "My husband's dick is definitely better...!!"
