Honoka Mihara, the popular signboard girl at a downtown public bathhouse, is known for her special technique—the "back wash that cleans even the penis"—which tempts regular customers and stirs their desires. As men fantasize about what lies beneath her swimsuit, their arousal builds uncontrollably. By chance, she gains the power to stop time. With this time-stop ability, she can indulge freely in bareback creampie sex and deep-throat penetration at will. She gathers companions to take turns in gang-fucking and creampie her repeatedly. When time resumes, the accumulated pleasure erupts all at once, leaving the men writhing in overwhelming satisfaction.