After her father's death, Ha So Min receives a call in her mother Kim Mi Yang's voice. However, So Min soon realizes that the one behind the phone is Ma Seok Gu using voice technology. Searching for clues, she finds an SOS from Mi Yang and chases a mysterious woman. As secrets unravel, So Min learns that Mi Yang's voice is being exploited by a phishing ring. Consumed by grief and rage, she vows revenge, joining forces with Detective Park Jeong Hun and turning to deepfake herself for a strike.

When So-min learns that the Ilsung faction is trying to send the staff of the Dragon God Festival event to the Chinese call center, he uses this as an opportunity to deceive and act out his identity to infiltrate the captain's house of the Ilsung faction. Sensing that Jung-hoon will return to his police status and intervene, he confesses lies to President Kim and makes a new proposal.

Unlike the call center, Somin, known as the luxurious Ilseongpa stronghold, catches Seokgu's eye thanks to her overwhelming skills. Seokgu senses a familiarity yet a strangeness in her, and becomes suspicious of her identity. However, Somin exposes the Heungsam-i faction's spy, averting the crisis and earning Seokgu's trust.

So-min, whose identity is almost exposed due to the ticket for "The Woman from Yanbian," lies to Seok-gu even more brazenly and proposes that they recruit Mason to "Genie the Star" to secure the business rights. Then, she introduces Mason's close associate, Eric Choi, aka Jeong-hoon, to Seok-gu, and So-min and Jeong-hoon's joint operation begins.

So-min, anxious about the presence of a man with a tattoo of the Ilseongpa faction, attempts to meet Jeong-hoon. However, she witnesses Jeong-hoon being kidnapped by the Ilseongpa faction and, while chasing him, loses him. She then receives a phone call from Seok-gu threatening, "If you don't return the money, I will kill Jeong-hoon."

So-min, who is trapped in an abandoned warehouse, despairs when he learns that Jung-hoon was on the same page as the Ilseong faction. Jung-hoon uses Seok-gu's cell phone to lure his entourage, and together with Doo-sik's spy Yoo Seung-seung, he recovers Seok-gu's slush funds and becomes loyal to Doo-sik. Helpless, Seok-gu succumbs to Doo-sik and gives up all power.

The situation is turned upside down by the appearance of So-min, who is on the verge of death, and the appearance of a new helper, as well as a raid by Jung-hoon, the police, and the police, and Seok-gu is stabbed to death after a fierce confrontation with So-min. After the Ilseong faction is completely wiped out and the corrupt forces are brought to justice, So-min, who has completed his sentence, begins to burst into tears through a video letter left by his mother while cleaning the spirits of Mi-yang and Hyun-jin.