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Netflix’s Kill Boksoon gives John Wick a run for his money as a female single-mother assassin is in the hot head. The original Korean movie stars Crash Course in Romance actor Jeon Do-yeon as Gil Bok-soon. Amid Bok-soon’s world of blood and death, she keeps it a secret from her teenage daughter. But Kill Boksoon leaves a mystery of who Jae-young’s (Kim Si-a) father is, with a few teasers for fans to hold on to.

[WARNING: This article contains spoilers for Kill Boksoon.]

Kim Si-a as Jae-young in 'Kill Boksoon.'
Kim Si-a as Jae-young in ‘Kill Boksoon.’ | via Netflix

Min-kyu teases that Jae-young’s father is a ‘regular guy’

Leading M.K. Ent. is CEO Min-kyu (Sol Kyung-gu), a feared assassin with years of experience which brought together multiple organizations under one roof. He has a long history with Bok-soon that will be discussed later on. But unlike everyone else in the company, he knows her better than anyone.

In Netflix’s original Korean movie, Bok-soon is considering whether to renew her contract with the company. Her daughter, Jae-young, is now a teenager and has been getting into some trouble. While in the car with Min-hee (Esom), the Director of MK. ENT and younger sister of Min-kyu, she asked who Jae-young’s father is.

It seems that no one at the company knows who he is. “Just a regular guy,” answered Min-kyu. Min-hee laughs at the idea that the man is someone unlike them. But fans are left to wonder if his answer has a double meaning. Min-kyu had a sorrowful look on his face and appeared distant while thinking about it.

Could it be that he considers what he had with Bok-soon as a relationship between a simple woman and a “simple guy” away from the reality of their careers and bloodshed? Or is Min-kyu instead lamenting that Bok-soon fell in love outside their world? The theory of who Jae-young’s father is in Kill Boksoon can go both ways.

Could Jae-young’s father be Min-kyu in ‘Kill Boksoon’?

Fans learn even more about the close relationship between Min-kyu and Bok-soon amid the criminal storyline. At the beginning of the movie, the scene showed that a teenage Bok-soon was physically abused by her policeman father. Flashbacks revealed the day she met Min-kyu, a young assassin contracted to kill her father. Not knowing Bok-soon would return home so early, he also had to kill her.

But she surprised him by saying he cannot leave a witness and pushed the chair away from her under father – leading to his stage death by suicide. Bok-soon’s actions stunned Min-kyu. During the Kill Boksoon finale, Bok-soon told Min-kyu she knows she is his weakness. But she asked since when.

Flashbacks go back to the day they met. Fans might remember that Min-kyu looked at a photo of Bok-soon and said she would look prettier if she smiled. After Bok-soon kills her father, she looked at him and gave him the biggest smile, and Min-hyuk fell in love at that moment. What does this all mean? It is clear that Min-hyuk loves Bok-soon, or he would not have helped her cover up her mistake that drives the movie storyline.

The teasers of Min-hyuk being Jae-young’s father in Kill Boksoon may be untrue. As he dies from his fight with Bok-soon, he revealed that he sent an iPad to her daughter to learn the truth about her mother. Would a father do such a thing to his daughter? Or did Min-hyuk do it out of spite for never having had Bok-soon?

Fans will never know who Jae-young’s father is

While trying to decipher the clues of whether Kill Boksoon is teasing fans that Min-hyuk is Jae-young’s father, the answer may have been simple all along. Min-hyuk’s “Just a regular guy” answer was likely the truth. Despite being in the business for years, Bok-soon must have once wished for a normal life. She possibly did fall in love with a regular man who knew nothing about her true profession and got pregnant.

Related ‘The Glory’: Did Do-young Love Dong-eun? K-Drama Writer Breaks It Down

‘The Glory’: Did Do-young Love Dong-eun? K-Drama Writer Breaks It Down

Fans can speculate many scenarios, like her leaving to protect him or him learning the truth and fleeing. The movie does tease that Jae-young does have killer tendencies like her mother, and it scared Bok-soon. There is the possibility that Jae-young was passed on the traits from Min-hyuk as well. Kill Boksoon will forever leave that small mystery of who Jae-young’s father is and was likely used as a narrative device to create a crack in the relationship between Bok-soon and Min-hyuk.

Kill Boksoon is available to stream on Netflix.