Binyû pururun soap (2001)

Tomomi is the top-ranked sex worker at a popular soapland. Okawa, a reporter covering the adult entertainment industry, interviews her. Tomomi originally entered the trade to pay off debts left by her ex-husband, but she is now infatuated with a host named Matsumoto, lavishing him with expensive gifts. A few days later, a newcomer named Erika joins the shop; she makes the manager, Yamazaki, climax with her exquisite fellatio skills, leaving no doubt that she is destined to become the number-one earner. Conflict erupts between the two women...