For six months now, sales at the Sales Department Third Section had been steadily declining. Due to their busy schedules, they couldn't enjoy the high-class soaplands (their section chief, Oguro) that were usually a monthly treat. As a result, morale among employees was low. Concerned about this situation, the managing director proposed creating a new Soapland Division and appointing Mikiri, one of the department's staff members, as its head. Naturally surprised by the offer, she hesitated but eventually accepted after being promised both a raise and commission based on performance. After carefully weighing her options against her home loan debts, she decided to take up the challenge and become the division's leader...

ここ半年、営業部3課の成績が著しく低下していた。多忙により、毎月の楽しみであった高級ソープ（3課課長・大木のおごり）に行けず、社員の士気が下がっていた。この事態を危惧した常務は3課の社員・芽依にある提案をする。ソープ課を新設し、その部長に芽依を任命するという。芽依は当然戸惑うが昇給、更に歩合の条件を提示され、家のローンと天秤に掛けて悩んだ結果、その話を受け入れてソープ課部長になる事を決心して…。