Good friends Ai Mukai and Shuri Atomi, who frequently meet up and enjoy spending time together privately. The two of them face off against men gathered from across the country, with the condition of a one-week abstinence period. While harboring rival feelings toward each other, they smile and torment their opponents, sometimes synchronizing their actions to support one another. Enjoying the men's reactions, they handle premature dicks and double ejaculations, ultimately extracting a massive thirty loads of semen. A delicate yet intense week-long challenge that draws out deep emotions between them.