Ryeoun is known for youthful, emotional roles in dramas like Twinkling Watermelon. But in the 2026 Disney+ mystery thriller “Bloody Flower” (also known as “The Flower of Death”), he takes a sharp turn into something colder, darker, and much more disturbing.
He plays Lee Woo-gyeom, a character built on a terrifying contradiction: a brilliant medical mind who is also a confessed serial killer. The result is a role many viewers describe as a startling transformation—not because it is loud or flashy, but because it is quiet, controlled, and constantly unsettling.
What Is “Bloody Flower” (aka “The Flower of Death”)?
“Bloody Flower” is a mystery thriller that begins with a shock: Lee Woo-gyeom is arrested at the start of the series for murdering 17 people. He admits what he did—but what makes the story truly tense is that he stays calm, almost comfortable, as if the rules of normal emotion do not apply to him.
Instead of focusing only on “who did it,” the drama builds its suspense around a more disturbing question:
What do you do with a killer who claims he can save lives on a global scale?
Who Is Lee Woo-gyeom? (Character Profile)
1) The genius doctor
Lee Woo-gyeom is a medical prodigy. He is also described as a former medical school dropout, yet he still has extraordinary surgical skills—the kind that make people believe he can do what others cannot.
This medical brilliance is important because it becomes the foundation of his excuse, his logic, and his power over everyone around him.
2) The serial killer arrested for 17 murders
At the beginning of the story, Woo-gyeom is arrested for the murder of 17 people. He does not deny it. He confesses.
But his confession does not bring relief. It creates fear—because he acts like a man with nothing to lose and nothing to regret.
3) The “savior” complex (how he justifies the crimes)
Woo-gyeom claims his murders were not pointless violence. He calls them human experiments, which he says were necessary to create a cure for all incurable diseases.
In his own mind, he is not a murderer. He sees himself as a savior of humanity—someone who achieved what modern medicine could not.
That belief is what makes him so dangerous: he does not think he is wrong.
4) Personality: rational, calm, and unreadable
Woo-gyeom is described as:
- Rational
- Eerily composed
- Emotionally unreadable
Even while wearing a prison uniform or sitting in intense interrogation, he holds a relaxed smile and an unwavering gaze. That steady calm creates a constant tension, because nobody can tell what he is thinking—or what he might do next.
Main Story Conflict: A Moral and Legal Trap
The drama centers on the moral and legal dilemma created by Lee Woo-gyeom’s existence. The story follows three key figures:
Lee Woo-gyeom (Ryeoun)
The confessed killer who claims he holds the key to saving the world through medical breakthroughs.
Park Han-joon (Sung Dong-il)
A veteran defense attorney forced into an impossible situation: he must defend Woo-gyeom in order to secure the “cure” that could save his own terminally ill daughter.
This is where the drama hits hard. It is not just about law. It is about desperation—and what a person is willing to accept when someone they love is dying.
Cha Yi-yeon (Keum Sae-rok)
A determined prosecutor who wants the death penalty. She views Woo-gyeom as a manipulative monster, no matter how valuable his medical claims might be.
This creates a sharp three-way conflict:
- A killer who says he is saving lives
- A lawyer who needs the killer’s knowledge to save his child
- A prosecutor who believes justice must come first
Ryeoun’s Acting Transformation (What Changed)
Ryeoun’s performance stands out because it is built on control, not emotion.
1) Restrained expressions
Compared to his earlier youth drama image, this character is played with subtle, cold nuance. Woo-gyeom does not need big reactions to dominate a scene. Small shifts—eye contact, stillness, a slight smile—do the work.
2) Psychological depth (two faces in one role)
The performance is described as multi-faceted:
- In some moments, Woo-gyeom can look like a vulnerable intellectual.
- In others, he feels like a terrifying psychopath.
That balance is the heart of the role: he is believable as a medical genius, yet frightening as a human being.
3) Physical change and a more mature look
Ryeoun also adopted a rougher, more mature look to distance himself from the “flower boy” image that many viewers associate with him.
Why the Drama Feels So Tense (Themes in Simple Words)
“Bloody Flower” builds tension from moral pressure, not only violence. It pushes questions like:
- Can a murderer’s work ever be “worth it” if it saves lives?
- Is it justice to execute someone who might cure incurable diseases?
- What happens when personal pain (a dying daughter) collides with public justice?
The show’s fear comes from the idea that Woo-gyeom’s calm confidence might actually influence people—even people who hate him.
Release Date + Where to Watch
- Premiere date: February 4, 2026
- Streaming: Disney+ in most regions
- Also available: Viu in some regions
(Availability depends on your country.)
FAQ
Is “Bloody Flower” the same as “The Flower of Death”?
Yes. “Bloody Flower” is also known as “The Flower of Death.”
Who does Ryeoun play in “Bloody Flower”?
He plays Lee Woo-gyeom, a medical prodigy who is arrested for murdering 17 people.
What is Lee Woo-gyeom’s motive?
He claims the killings were human experiments needed to create a cure for all incurable diseases. He sees himself as a savior, not a murderer.
Who are the main supporting characters?
- Park Han-joon (Sung Dong-il): defense attorney who must defend Woo-gyeom to try to save his terminally ill daughter
- Cha Yi-yeon (Keum Sae-rok): prosecutor seeking the death penalty
