Baseball team manager named Yurina. She leads a busy daily life, always making scorecards and doing laundry for the team members. Her hard work has made her popular among the players, who adore her as their number one masturbation partner. But one day, unknown men abduct her to a filthy, rundown house, turning her into a personal masturbation hole for their sexual gratification. Despite her strong-willed nature, Yurina tries to endure the men's relentless assault, yet gradually her resolve crumbles under the overwhelming pleasure rising from deep within, until she is completely consumed by the ecstasy.