Jane is a Korean American. She will stay at her father's friend's house for a few months while preparing a chain massage shop in South Korea. However, what she does is not work at a massage parlor, but sells sex toys on internet radio stations. Her boyfriend Tae-in doesn't like what she's doing and tries to make her stop. One day, Jane found out that her mother in the United States was sick. On her way home, Tae-in had a car accident. Jane is accustomed to testing her sex toys on Tae-in, so when he gets sick, her sales will decrease. So she found other men to test her toys...
原口元子（武井佐纪饰演）背负着父母留下的债务。白天，他在银行当调度员，晚上，他在银座的一家俱乐部陪喝酒。她一边工作一边收集证据，手里拿着一本黑色皮革手册，里面装满了银行和客户利用假户口逃税的证据，勒索了1.8亿日元，并变身为银座俱乐部“Karune”的母亲Sang。在没有任何支持的情况下，作为一名年轻的母亲，她只能依靠自己的抱负在黑暗的世界里努力工作。像“怪物和怪物”这样的坏人包围着她。在各种交织的欲望中，元子孤军奋战。
她接受了为男朋友的父亲服务，误入歧途，违反了道德规范。她以为以后不会再有互动了，但她的男朋友突然又来和她团聚了
