Outside Choi Cheol's operating room, Mr. Shin comes face-to-face with Lee Heo Jun for the first time, and a subtle war of nerves unfolds between them. Meanwhile, with help from Mr. Shin and Si On, Pillip struggles to resolve the issue of unpaid wages for Mo Sun Mi and his fellow trainers. They soon uncover that the true culprit behind the incident who has been embezzling funds and committing breach of trust.

Mr. Shin uses an offshore secret account to bait Yun Dong Hee. Gripped by anxiety over potentially losing his money, Yun Dong Hee begins to take the bait. Meanwhile, Ji Woo, who came to Korea without telling her mother, comes to Secret to see her mother, but suddenly, Yong Woo appears and blocks her path. Someone unexpected shows up in front of Mr. Shin.

Yun Dong Hee is captured by Mr. Shin and taken to an unknown location. For the past fifteen years, Mr. Shin has been waiting for this very day. Meanwhile, Pillip, Si On, and Cheol visit Mr. Shin's house and sense something dangerous. At that moment, Mr. Shin calls Pillip and asks him to act as his negotiator. To uncover the truth behind his son's death, Mr. Shin launches a plan driven by years of anger and sorrow.