Ayako is the owner of a massage parlor and a working professional. However, her sister Kanako took out a loan using the shop's rights as collateral and then disappeared, leaving Ayako pursued by debt collectors. She is forced to work under Shirakawa, a new manager sent by the collectors, enduring harsh training and suffering deep humiliation and shame. With her pride shattered, Ayako is left with no choice but to obey—either repay the debt or lose the shop. Throughout this ordeal, she faces an intense struggle that challenges both her weakness and inner strength.