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Thank you for the pain, 'cause it got me going viral.

Baby's lines in "Your Idol"

Baby Saja is the main rapper of Saja Boys and serves as a minor antagonist in the film KPop Demon Hunters. He is a demon who disguises himself as a K-pop idol to steal fans from HUNTR/X.

Baby's rapping voice is provided by Danny Chung.

Appearance[]

Baby is a slim man of average height with a boyish appearance. He has a short, round face with a small nose and soft lips. As a human, he has pale skin, fluffy turquoise hair styled in a mop top, and matching turquoise eyes and eyebrows. In demon form, most of these features remain the same, with the exception of grayish skin with dark purple patterns, sharp teeth/fangs, clawed hands, and glowing golden eyes.

While disguised as an idol, Baby dresses in newsboy caps worn backwards, oversized sweaters layered over collared shirts, ripped skinny jeans, and high-top sneakers. Additionally, his nails are either painted mint or purple depending on the scene.

As a demon, Baby wears traditional Korean clothing, including a gat and a tattered black hanbok comprising of a long jeonbok vest, a jeogori top, baji trousers, a sejodae sash tied around the waist, and hye shoes.

During the performance of "Your Idol," Baby blends traditional and modern styles, wearing a gat, a black sochangui overcoat with demon patterns on the cuffs and hem, a turtleneck, a necklace, a pendant on the chest, three rings on his left hand, two chains draped over his left shoulder, and pants tucked into combat boots.

Personality[]

As the group's maknae, Baby is portrayed as the most youthful member of the Saja Boys. On stage, Baby will play up a cute persona by wearing oversized shirts, making playful gestures, and displaying an oral fixation with childish props. And unlike the other members, he avoids ship teases, which only reinforces his role. However, when performing music, his presence is more commanding, with raps that draw attention to himself in a way that is less demeaning.

Despite his boyish image, Baby retains an immoral demonic mindset, willingly serving Gwi-Ma and assisting Jinu in his scheme to steal souls. Outside of performances, unless he's interacting with fans, he puts on a bored, uninterested mask and has a nonchalant demeanor. This indifference becomes even more apparent in the demon world, where he looks tired of having to maintain his idol persona. Additionally, like the other Saja Boys, he also displays signs of aggression when their plan begins to unravel, and shows genuine shock when Jinu sacrifices himself for Rumi.

He seems to enjoy spicy food, as he appeared to be enjoying drinking the hot sauce during the spicy challenge on the variety show Play Games With Us, while the other Saja Boys appeared to be struggling. He also seems to enjoy lollipops, as he’s seen with one in a lot of scenes.

Plot[]

Life history[]

Little is known about Baby Saja's early life. It is assumed that he was once human and made a deal with Gwi-Ma, a decision that ultimately led to his transformation into a demon.

Chronology[]

Baby saja smug

Baby performs "Soda Pop."

Baby first appears in the demon world alongside Jinu during a meeting with Gwi-Ma, where Jinu proposes a new strategy to defeat the demon hunters. He proposes forming a rival K-pop boy band to undermine HUNTR/X, the current generation of hunters, by winning over fans’ devotion and weakening the Honmoon. This leads to the creation of the Saja Boys, with Baby as one of its members.

In his next appearance, Baby is seen in human disguise alongside the other Saja Boys in an alleyway, where they run into the HUNTR/X members. Shortly after, he performs the song “Soda Pop” with the group in a town square. Later, the Saja Boys compete on a variety show in a hot sauce drinking contest. Baby wins the competition, drinking the sauce with ease and finishing with the phrase, "Googoo gaga." After the show, he is shown with the Saja Boys at a men’s bathhouse, where they trick HUNTR/X into fighting water demons.

After gaining popularity, the Saja Boys return to the demon world to report their progress to Gwi-Ma. Baby is shown posing in his idol persona before transforming into his demon form, looking visibly exhausted. In later appearances, he is seen with the group as they receive awards from various Korean music programs. He is later shown wearing a sleeping bag shortly before the Saja Boys interrupt a HUNTR/X fan signing event.

During the event, the two groups share a table, with Baby sitting between Zoey and Jinu. Unlike the other Saja Boys, Baby keeps himself occupied by drinking water. Although he appears touched by the flower bouquets given by fans, he discards them in a trash bin immediately after leaving the venue, and 'puts on' an exhausted face, likely because JInu made them sleep on the sidewalk.

Baby Saja Your Idol

Gwi-Ma rising during Baby's rap.

In his final appearances, Baby is seen backstage with the Saja Boys at the International Idol Awards. He later performs with the group at their Namsan Tower concert, singing "Your Idol" in his demon form. When Rumi interrupts the show to reunite with HUNTR/X, Baby is shown flying toward the girls and engaging in a brief fight with Zoey. After Jinu sacrifices himself for Rumi, Baby is left shocked by the betrayal. His fate is not explicitly shown, leaving his status unknown. After the fight, he was never seen again.

Abilities and skills[]

  • Soul Stealing: As a demon, Baby has the ability to steal souls from living beings, which is crucial to his role serving Gwi-Ma.
  • Teleportation: Baby is seen teleporting after the street performance of "Soda Pop", where he uses it to leave the scene along with the rest of the Saja Boys. Him and the other boys disappear leaving only purple smoke behind.
  • Levitation: Baby is seen levitating in the demon world, and during the "Your Idol" performance.
  • Immortality: Being a demon, Baby is practically immortal unless defeated by a hunter or by Gwi-Ma's fire.
  • Shapeshifting: Baby can shapeshift between his human persona and his true demon form.
  • Conjuration: Baby can create floating hearts out of thin air, as seen during the "Soda Pop" performance.
  • Rapping: As the main rapper of the Saja Boys, and as he was designed to be a perfect rapper, Baby Saja is exceptionally good at rapping.
  • Dancing: As a K-pop idol, Baby demonstrates strong proficiency in dance.
  • High Spice Tolerance: He can handle higher levels of spice, proven when he won the hot sauce challenge.

Quotes[]

Uh, make me wanna flip the top. 한 모금에 you hit the spot. Every little drip and drop, fizz and pop, ah 소름 돋아 it's gettin' hot.

Baby rapping his part in "Soda Pop"

Goo goo ga ga.

Baby, after winning the spice contest

Uh, 빛이나는 fame, 계속 외쳐, I'm your idol. Thank you for the pain, 'cause it got me going viral. Uh, yeah, 낫지 않는 fever, makin' you a believer 나를 위해 넌 존재하는 idol.

Baby’s rap in "Your Idol"

Trivia[]

  • Being the maknae, Baby Saja is the youngest member of the Saja Boys.
  • Contrasting his childish appearance, Baby Saja has the deepest voice out of all the Saja Boys.
  • Baby Saja's fate remains unclear, as it is not explicitly shown whether he was killed off-screen. The same is presumed for Romance.
  • Baby Saja is the only Saja Boy who isn't canonically shipped with any HUNTR/X member. Instead, he was portrayed as the child of Mystery and Zoey in fanart.
  • Baby has spoken the least speaking lines out of all the Saja Boys. He has only one line, being “Goo-goo ga-ga”.
    • Baby Saja is the only member of the Saja Boys without a separately credited speaking voice actor.
  • According to director Maggie Kang, Baby's look—as well as his position as the maknae and rapper of the group—was inspired by archetypes seen in many real-world K-pop groups.[1]
  • It was confirmed by art director Wendell Dalit that during the variety show scene, when the Saja Boys brought out the slide, Baby Saja was the one who wrote "HUNTR/X" on the base.[2]
  • Baby could symbolize the infantilization of K-pop idols.
  • He was canonically chosen by Jinu to become a Saja Boy because he was one of the most handsome and attention-seeking demons in the demon world.[3]
  • Soda Pop was written by Vince, 24, Dominsuk, Kush, and—notably—Danny Chung (the voice actor and singing voice of Baby Saja).

References[]

  1. Sirikul, Laura (Jun 19, 2025). "Director Maggie Kang Reveals Who Inspired ‘KPop Demon Hunters’ Characters". Forbes. Retrieved on September 21, 2025. “'Baby Saja is, obviously, the maknae (youngest),' Kang explains. '[They] have this look and they’re usually the rapper of the group.'”
  2. Dalit, Wendell (July 7, 2025). Mira Mira on my phone who’s the baddest? my kid, Hello??. Instagram. Retrieved on August 6, 2025. “She was learning to write at the time - so we used her handwriting as Baby Saja’s.”
  3. https://www.youtube.com/watch?v=4SdTOHd_Ei4

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