'Lee Seo-dan', a regular employee in his first year at a large company, accuses internal personnel corruption, but is driven backwards and is ostracized from the company and faced with a spectacular resignation crisis. Desperate to catch the last straw, Lee Seo-dan submitted an application to the innovation TF led by celebrity team leader Han Joo-won. Han Joo-won offers him an unexpected proposal, and Lee Seo-dan seizes the opportunity to know whether it is a lifeline or a rotten rope. Three months from winter to spring. A man you have to face at work on weekdays and at a hotel on weekends. Seo-dan Lee, who had been helplessly swayed by him who was frightening, unknown, and alternately gave him sickness and medicine, realized at some point.