Blood Free

It is Christmas Eve of 2025. BF showcases their new product. Everyone praises Jayu, the CEO, but the primary industry suffers because of BF. Two other incidents occur on the same day. A stockbreeder falls on Jayu's vehicle. BF Laboratory is subjected to a ransomware attack. Chaewoon is involved in both incidents. Who is he?

Chaewoon becomes Jayu's bodyguard. They attempt to fix the hacking but realize governmental power is needed. Jayu asks Seonu Jae, the prime minister, for help. A BF chief researcher gets in a car accident. Jayu suspects these incidents are related, and Chaewoon finds something suspicious about the hacking.

It is suspected that the hacking could have been an inside job. Could the culprit be nearby? Jayu digs into Chaewoon's past. She finds out that he was present alongside her during the terrorist attack that involved the president a few years ago.

Seonu Geun, the chairman of DORSON Group and Seonu Jae's biological father, suggests that Jayu sells her cultured meat technology to him. Meanwhile, the hacker is found dead. Jayu is suspected of being responsible and she even receives death threats.

Chaewoon is critically injured during the shoot-out. The secret laboratory in BF's basement begins the operation. Chaewoon recovers swiftly, but there seems to be something wrong with his hearing. Could this be a side effect of recovering so quickly?

The hacker's body is found. Jayu does not understand why he attacked her and her company. Chaewoon and Hoseung, a fellow bodyguard, retraces the hacker's steps. They find an individual who was close to him, but something strange happens when they try to meet this individual. Then a tragedy befalls.