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And to our fans, thank you. We really feed off your energy. We're so excited to show you...what's next.
Mystery thanking the Saja Boys Pride
Mystery Saja is a backup vocalist of Saja Boys and serves as a minor antagonist in the film KPop Demon Hunters. A demon in disguise, he poses as a K-pop idol in order to steal fans from HUNTR/X. He also briefly appears as a love interest for Zoey.
Mystery is voiced by Alan Lee, with Kevin Woo providing his singing voice.
Appearance[]
Mystery is a man of average height with a slim build. His most distinctive feature is his long, periwinkle/lavender-colored hair with bangs that completely cover his eyes. While much of his face is obscured, he appears to have a small nose, thin lips, and a soft V-shaped jawline. In demon form, he retains most of his human features, with the exception of purple skin with patterns, clawed hands, and sharp teeth with hidden tusks.
While disguised as an idol, Mystery is typically seen wearing sweater vests over sleeveless turtlenecks, earrings, arm warmers, ripped skinny jeans, wallet chains, and sneakers. His nails are also manicured with purple nails.
As a demon, Mystery 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," Mystery blends traditional and modern styles, wearing a gat, a black sochangui overcoat with demon patterns on the cuffs and hem, a crewneck shirt, a necklace, a pendant on the chest, asymmetrical pants with the right leg cut short, a stocking and garter on his right leg, and combat boots.
Personality[]
Mystery is portrayed as the most enigmatic member of the Saja Boys. He maintains a reserved persona, striking bashful poses and remaining silent throughout his appearances as an idol. Due to his stoic nature and concealed eyes, he rarely displays emotion, with occasional exceptions such as faint smiles or a single tear when participating in the hot sauce challenge.
Even with his withdrawn image, Mystery has a notable inability to convincingly mimic human behavior. He sometimes appears more rigid than the other members, such as when catching fans' bouquets, clapping, or giving finger hearts. Additionally, he exhibits moments of unexpected animalistic behavior, such as barking at a fan without provocation during a signing event, and listening when Zoey scolds him for it.
Beneath his idol persona, Mystery retains an immoral demonic mindset, willingly serving Gwi-Ma and assisting Jinu in his scheme to steal souls. Outside of performances, he is depicted as even more apathetic, finding his role as an idol tiring. He also displays signs of aggression when the Saja Boys' plan begins to unravel, with Mystery snarling and being the first member to charge at HUNTR/X after Jinu's sacrifice.
Plot[]
Life history[]
Little is known about Mystery's past. It is assumed that he was once human and transformed into a demon after making a pact with Gwi-Ma.
Chronology[]
Mystery 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 Mystery as one of its members.
Mystery next appears in human disguise with the Saja Boys, casually encountering HUNTR/X in an alley. Shortly after, he is seen in a town square performing the song “Soda Pop” with the group. Later, the Saja Boys compete on a variety show in a hot sauce drinking contest. Mystery finishes in third place, where he is silenty brought to tears. After the show, he is seen with the rest of the Saja Boys at a male bathhouse, where they lure HUNTR/X into fighting water demons.
After gaining popularity, the Saja Boys return to the demon world to report their progress to Gwi-Ma. Mystery is shown making finger hearts as an idol before switching into his demon form, looking visibly exhausted. In his next appearances, Mystery is seen with the boys as they take home awards from music shows. Following this, he shown wearing a sleeping bag before the Saja Boys hijack the HUNTR/X fansign.
When the two groups join tables, Zoey immediately flirts with Mystery when he sits next to her. Later, he barks at fans without warning and is reprimanded by Zoey for his behavior. Although he appears touched by the flower bouquets given by fans, he discards them in a trash bin immediately after leaving the venue.
In his final appearances, Mystery 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 demon form. When Rumi interrupts the show to reunite with HUNTR/X, Mystery is shown flying toward the girls and engaging in a brief fight with Zoey. After Jinu's sacrifice, Mystery is the first to attack the other HUNTR/X members. Zoey manages to briefly see his uncovered face before delivering the final blow.
Abilities and skills[]
- Soul Stealing: As a demon, Mystery has the ability to steal souls from living beings, which is crucial to his role serving Gwi-Ma.
- Teleportation: Mystery 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.
- Levitation: Mystery is seen levitating in the demon world, and during the "Your Idol" performance.
- Immortality: Mystery is practically immortal unless killed by a hunter or Gwi-Ma.
- Shapeshifting: Mystery can shapeshift between his human persona and his true demon form.
- Singing: As a vocalist of the Saja Boys, Mystery has an exceptionally angelic voice and can hit unusually high notes.
- Dancing: As a K-Pop idol, Mystery demonstrates strong proficiency in dancing.
Quotes[]
When you're in my arms, I hold you so tight. Can't let go, no, no, not tonight.
Mystery singing "Soda Pop"We're so excited to show you what's next.
Mystery, to fansDon’t let it show, keep it all inside. The pain and the shame, keep it outta sight.
Mystery, singing "Your Idol"Trivia[]
- In addition to emphasizing his mysterious persona, Mystery's hairstyle was designed to streamline the animation process. Unlike the other Saja Boys, he requires less facial animation.
- Zoey is the only person who has seen Mystery's uncovered face.
- In the "Soda Pop" sequence, Mystery's left eye is allegedly visible for a brief moment.
- Mystery was the only member of the Saja Boys to have tusks. However, they disappear shortly after his initial reveal and are never seen again.
- Mystery's singing actor, Kevin Woo, stated in a Tiktok post that Mystery had a crush on Zoey.[1] However, this could just be the voice actor's personal speculation.
- Mystery could symbolize the tendency of K-Pop fans to project idealized narratives onto idols.
References[]
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