Blood Free revolves around Yun Ja-yu, who hires a bodyguard when she and her company, BF, face threats from enemies both inside and outside the company. All episodes are now streaming on Disney+.
Warning: This article contains heavy spoilers
Plot summary
Yun Ja-yu has achieved what no one else has yet: her futuristic company, BF, has successfully cultured meat.
She is confident that they will soon be able to culture fish and grains, which threatens the livelihood of farmers and turns them against her.
When a protesting farmer kills himself by jumping on top of Ja-yu’s car, a stranger named Woo Chae-woon helps Ja-yu’s team effectively manage the situation.
Chae-woon’s presence at the scene is not a coincidence; he used to be a soldier and was recently contacted by the country’s former president, Lee Mun-gyu.
During Lee Mun-gyu’s presidency, he made a surprise visit to troops deployed at AZORAN, where Ja-yu was one of the CEOs who accompanied him.
A terrorist attack during this visit resulted in the deaths of several soldiers and left Lee Mun-gyu disabled. It was Chae-woon’s responsibility to protect him.
Chae-woon is still searching for the person behind the AZORAN terrorist attack. Like Lee Mun-gyu, he believes that the culprit is one of the CEOs.
Lee Mun-gyu is convinced that Ja-yu is the culprit and seeks Chae-woon to become her bodyguard and spy on her.
Later, as Lee Mun-gyu had assured him, Chae-woon is contacted by BF for the position of a bodyguard. He passes all the tests and ends up becoming Ja-yu’s bodyguard.
As Ja-yu faces one problem after another, including her trusted team member Professor Kim betraying her, Chae-woon helps her deal with the crisis.
He proves himself useful to her and earns her trust, so she keeps him as her bodyguard even after learning that he was at AZORAN during the terrorist attack.
The two of them come close to catching Professor Kim after he betrays Ja-yu, but someone else reaches him before them and kills him.
It then becomes evident that someone is trying to harm Ja-yu when she is attacked by armed men. While protecting her, Chae-woon is mortally wounded.
Ja-yu takes Chae-woon to BF’s basement and treats him with the help of her research team, which includes On San, Hong Sae-ip, and Seo Hui.
They manage to save his life using cultured tissue and blood. It is then that Chae-woon discovers that BF is also culturing human organs.
Ja-yu has been researching and culturing organs because she wants them to be accessible to all, aiming for a world where humans can live painlessly.
On San also restores Chae-woon’s hearing in one of his ears, which was lost during the terrorist attack. Due to the transplant, Chae-woon now has super hearing and strength.
Initially, Chae-woon is angry with Ja-yu and her team, but once he learns her motives for culturing organs, he thanks her for saving his life.
Chae-woon and Ja-yu’s second bodyguard, Ho-seung, begin investigating the death of Professor Kim, leading them to a welfare center Professor Kim attended.
There, they come to know about Ji Sun-won, the man who brainwashed Professor Kim. When they pursue him, he kills Ho-seung.
This tragedy prompts Chae-woon to suspect Jeong Hae-deun, who is part of Ja-yu’s inner circle, as she was one of the people aware of the visit to the welfare center.
Chae-woon’s suspicions are confirmed when Ja-yu’s team lures Hae-deun into a trap, resulting in her capture and interrogation at BF.
During the interrogation, Chae-woon, now aware that Ja-yu was not behind the terrorist attack, reveals that he was sent by Lee Mun-gyu to spy on Ja-yu.
Furthermore, following Chae-woon’s miraculous recovery, the country’s Prime Minister, Seonu Jae, who is Lee Mun-gyu’s grandson, and his father, Chairman Seonu, learn of Ja-yu’s success in culturing organs.
Chairman Seonu, who owns a firm called DORSON, has been interested in acquiring BF, fearing that BF’s success could surpass all other companies.
Hae-deun was spying on BF for Chairman Seonu, who had also employed Ji Sun-won, as he wishes to acquire the organs for himself and achieve immortality.
His son, Seonu Jae, attempts to get Ja-yu to share her research with him. However, Ja-yu refuses because Seonu Jae aims to provide the organs exclusively to the wealthy.
Before Seonu Jae can expose Ja-yu’s secret research and confiscate her technology, she decides to make a bold move.
She publicly announces that BF has succeeded in culturing organs and asks for volunteers willing to participate in clinical trials.
Additionally, she reveals that her team treated Professor Kim’s wife in the past, resulting in her death. Ja-yu is ready to take responsibility for illegally carrying out this medical treatment.
To assure the public of the organs’ safety, she announces her intention to replace her own organs with BF’s cultured ones, surprising everyone.
Despite Chae-woon and her team’s concerns, Ja-yu remains firm in her decision. Chae-woon focuses on investigating the truth about the terrorist attack.
On the other hand, Seonu Jae announces that he will take legal action against BF, having earlier threatened Ja-yu with a search and seizure at BF.
Chae-woon meets with Seonu Jae’s mother and discovers that Chairman Seonu was behind the terrorist attack, which led to her divorce from him.
Although Lee Mun-gyu was unaware of this, Seonu Jae was not. Seonu Jae was also privy to all the attacks his father carried out against Ja-yu and BF.
Ending explained:
The two sides make their moves
On San manages to discover the real identity of Ji Sun-won, which even Chairman Seonu had failed to uncover, and informs Ja-yu that Ji Sun-won was working for Chairman Seonu.
Chae-woon, after conducting his own investigation, reveals that Chairman Seonu was also the one behind the terrorist attack.
Ja-yu plans to extract a confession from Hae-deun to expose Chairman Seonu’s crimes, but she discovers that Hae-deun was injured while trying to escape.
As a result, Hae-deun loses her memory and cannot testify against Chairman Seonu. However, Chae-woon has another plan.
Chae-woon had met with Kir, the man who took the blame for the terrorist attack, and learned that Kir’s cousin blackmailed him.
Chae-woon heads to Dubai to catch Kir’s cousin, and before leaving, he makes Ja-yu promise not to undergo an organ transplant in his absence.
Although Ja-yu intends to wait for Chae-woon’s return, she begins preparations for the transplant by bringing in the best doctors to perfect their transplant technology.
Meanwhile, Seonu Jae takes no action to stop Chae-woon. In fact, he allows his mother to inform Chae-woon that Chairman Seonu was responsible for the terrorist attack.
Seonu Jae tells his father that he will bring the organs cultured at BF for DORSON to replicate. In addition to ordering a search and seizure, he has his men hack into BF’s system.
The basement breach
Ja-yu contacts Ji Sun-won and asks him to meet her, hoping to get him to confess against Chairman Seonu.
Chairman Seonu’s men have been pursuing Ji Sun-won, and he agrees to meet Ja-yu only after sustaining injuries from Chairman Seonu’s men.
When Ja-yu meets Ji Sun-won, they are both attacked by Chairman Seonu’s men, and Ja-yu is critically injured. Now, she urgently needs multiple organ transplants to survive.
While Ja-yu undergoes surgery, the authorities arrive to carry out a search and seizure at BF. A team of armed men also arrives at BF.
Amidst this chaos, Ja-yu’s team fails to detect hacking attempts. Their compromised system cannot seal off the basement, where the surgery is taking place.
The armed men storm the basement in an attempt to steal the cultured organs, interrupting Ja-yu’s surgery and endangering her life.
Ja-yu’s team fights against the attackers. They are joined by Chae-woon, who has returned from Dubai after catching Kir’s cousin.
Together, they manage to prevent the theft of BF’s cultured organs, but Chae-woon is mortally wounded once again, and several safety hazards arise during Ja-yu’s surgery.
Seonu Jae’s ultimate goal
After the ordeal, BF accuses Chairman Seonu of attempting to steal BF’s organs, employing Ji Sun-won, and organizing the AZORAN terrorist attack.
Seonu Jae denies the accusations against his father until BF releases a voice recording that proves Chairman Seonu’s guilt.
Earlier, Ja-yu had planned to use her AI technology to impersonate Hae-deun and talk to Chairman Seonu. Her team successfully carried out this plan and recorded the phone conversation.
Secretly, Seonu Jae is pleased that his father has been exposed. It turns out that Seonu Jae’s ultimate goal was to gain control of his father’s company.
Chairman Seonu wants to be immortal with BF’s organs, and as long as he lives, Seonu Jae cannot take over his company.
Seonu Jae used his grandfather to expose his father’s crimes. Although he was aware of his father’s attacks on Ja-yu and BF, he now pretends to be ignorant.
Seonu Jae then writes a speech apologizing to the nation for believing in his father’s innocence and launches an investigation against him.
He resigns as Prime Minister to take responsibility, thus creating an image of a fair and responsible public figure in the process.
With his father out of the way, Seonu Jae assumes the role of DORSON’s chairman and gets all BF items confiscated during the search and seizure.
Are Ja-yu and Chae-woon dead or alive?
On San meets with a public prosecutor and answers his questions about the armed men attacking BF.
On San claims that he and other employees acted in self-defense and had to kill those men. He also states that Chae-woon has been missing since the incident.
Then, a team enters the room where Seonu Jae’s hackers work. The hackers are knocked out, and the team is seen tampering with their computers.
People believe that BF is concealing the fact that Ja-yu is dead. However, towards the end, Ja-yu’s voice is heard asking her AI system about her whereabouts.
It is then revealed that Ja-yu’s team had treated a critically injured Chae-woon. Just as Ja-yu’s voice is heard, Chae-woon is seen waking up.