Saja Boys is a fictional boy group from the movie Kpop Demon Hunters. Even though the animated singers do not exist in real life, they have sure created a lot of hype.
If you’ve recently watched the movie and have been swept from your feet just like us, you’re at the right place. In this article, I’m going to talk about everything you need to know to stan them.
From their core concept and individual character profiles, to the real-world singers/actors and their legendary performance on the charts, I’ll cover everything.
Who Are The Saja Boys: In A Glance
The Saja Boys are a fictional five-member K-pop boy group from the Netflix animated film, KPop Demon Hunters. Their name, Saja (사자), means Lion but also refers to the jeoseung saja (Korean grim reaper). It’s the ultimate “evil genius” concept.
Here’s a few key facts about your next favorite band:
| Group Name | Saja Boys (사자 보이즈) |
| Debut | June 20, 2025 (Film Release) |
| Debut Song | “Soda Pop” |
| Label (Fictional) | No official label in the movie |
| Fandom Name | Pride (A collective of lions—so clever!) |
| Official Colors | No official colors |
| Concept | Dark-Pop, Grim Reaper Idols, Soul Consumption |
| Motto | “Join the Pride, we need you” |
| Genre | K-Pop, Pop, Dance-Hip-Hop |
Now that we know a little bit about this globally popular fictional group, let’s find out more about each member!
You can also read a detailed guide on Saja Boys’ names here.
Saja Boys Character Profiles (The Fictional Idols)
Remember, most of the Saja Boys (aside from Jinu) are ancient demons wearing a perfectly crafted idol shell. We’re using the most popular fan-estimated heights and having fun with the fictional details!
1. Jinu: The Leader and Center
| Birthday | Unknown (Likely centuries old) |
| Age | 400+ (But looks permanently 24) |
| Height | ~180cm (5’11”) |
| Zodiac Sign | Let’s say Scorpio for that mysterious vibe |
| Role in group | Leader, Main Vocal, Center |
| Fun Fact | His visuals were reportedly inspired by actors like Ahn Hyo-seop and ASTRO’s Cha Eun Woo. |
Jinu is the cool, magnetic leader with an icy charm and complex backstory. He’s the original human-turned-demon, making him the only member with genuine human feelings left, which is why he’s so tragically captivating.
He is the visual standard and main antagonist foil to Rumi. He often struggles internally with the group’s demonic mission.
2. Abby: The Main Dancer and Power Visual
| Birthday | Unknown |
| Age | Ancient (The “Strong Hyung” archetype) |
| Height | ~185cm (6’1”) (The tallest of the group!) |
| Zodiac Sign | Leo (Lion energy, obviously) |
| Role in group | Main Dancer, Sub-Vocal, Power Visual |
| Fun Fact | His physique inspiration is rumored to include MONSTA X’s Shownu. |
Abby is the powerhouse of the group and the strongest dancer, often called Abs Saja for obvious reasons. He’s the muscle and the silent, dominant visual of the quintet.
His presence on stage is pure, controlled intensity, moving with sharp precision that mirrors his demonic strength and incredible stage charisma. Abby rarely speaks, letting his powerful moves and chiseled visuals do all the talking.
3. Mystery: The Sub-vocal and Visual Enigma
| Birthday | Unknown |
| Age | Ancient |
| Height | ~180cm (5’11”) |
| Zodiac Sign | Pisces (Dreamy and illusive) |
| Role in group | Sub-Vocal, Visual Enigma |
| Fun Fact | He’s the only member whose main inspiration comes from the anime world rather than K-pop idols. |
Mystery is the cipher of the group. His face is constantly covered by his long, silver-grey hair, making him the ultimate visual enigma and attracting fans who love the dark, unreadable concept.
This lack of clear identity makes him so intriguing; he’s the quiet, seductive element who pulls people into the Saja Boys’ orbit. His unique, anime-inspired look totally sets him apart.
4. Romance: The Visual Heartthrob
| Birthday | Unknown |
| Age | Ancient |
| Height | ~177cm (5’10”) |
| Zodiac Sign | Libra (All about balance and charm) |
| Role in group | Sub-Vocal, Visual Heartthrob |
| Fun Fact | His voice actor, Joel Kim Booster, is also a famous comedian and writer. |
Romance is the ultimate bias-wrecker, specifically designed to manipulate emotional attachment. He is the heartthrob, specializing in the flirty, charming idol persona.
Every smile, wink, and finger-heart is calculated to make you feel like you have a unique, personal connection—a true bias trap. He perfectly embodies the dangerous side of parasocial relationships, all while looking impossibly handsome.
5. Baby: The Maknae and Rapper
| Birthday | Unknown |
| Age | Ancient |
| Height | ~175cm (5’9”) |
| Zodiac Sign | Aries (Fiery and secretly impulsive) |
| Role in group | Main Rapper, Maknae |
| Fun Fact | He was inspired by high-profile visuals and rappers like Stray Kids’ Hyunjin. |
Baby is the group’s youngest member (maknae) and their official rapper, though he has no speaking lines in the movie. He leans into the ‘cute-on-the-surface, chaotic-underneath’ vibe.
He’s the innocent-looking one, often seen with an actual baby bottle, which is just unsettlingly brilliant. Despite his age, his deep, growling rap voice adds an unexpected layer of threat to their dark performances.
The Dark Appeal: Saja Boys and K-Pop Archetype Satire
The Saja Boys are not your regular movie villains. They are a deliberate manifestation of fan desires wrapped in familiar K-pop idol archetypes. Their entire existence is a meta-commentary on the parasocial relationships built between fans and idols.
They literally steal souls via emotional attachment, brilliantly satirizing the emotional demands and consumption culture within K-pop fandom. You get to safely simp for the bad guys while appreciating the genius-level concept.
Meet the Hidden Gods: The Real Vocalists Behind Saja Boys’ Sound
It takes serious talent to bring fictional characters to life, especially when they are supposed to sound like they could genuinely top the charts. Let’s get to know the incredible real-life singers and producers:
1. Andrew Choi (Vocalist For Jinu)
Andrew Choi provides the commanding, powerhouse vocals for the leader Jinu. A true veteran, Choi gained fame as a finalist on K-pop Star Season 2 and has built a stellar career behind the scenes.
He is an established producer and composer, having worked on hit tracks for heavy-hitters like SHINee, EXO, and NCT. His experience gives Jinu that authentic, pro-idol sound.
2. Kevin Woo (Vocalist For Mystery)
Our enigmatic Mystery is brought to life by the legendary Kevin Woo. If that name rings a bell, it’s because he’s a former member of the iconic K-pop group U-KISS!
Woo’s velvety smooth voice gives Mystery Saja that addictive, seductive vocal layer. His presence legitimized the entire group, proving that even fictional demons need a K-pop veteran’s stamp of approval.
3. Neckwav (Vocalist For Abby)
Neckwav lends his incredible vocals to Abby (Abs Saja). Neckwav is a gifted Korean indie R&B singer, composer, and producer. He isn’t really active on social media.
4. SamUIL Lee (Vocalist For Romance)
The smooth, heartthrob vocals of Romance are delivered by the multi-talented K-pop songwriter and singer, samUIL Lee. He has an extensive portfolio, having worked with popular groups like Seventeen, NCT Dream, and RIIZE.
His vocal work ensures Romance has that effortlessly alluring, honey-sweet tone necessary to reel in the fans and make you question your allegiances.
5. Danny Chung (Vocalist For Baby)
Danny Chung, a highly respected Korean-American rapper and songwriter, is the low-voiced mastermind behind Baby Saja’s rap lines. Chung has penned songs for some of the biggest names in the industry, including BLACKPINK and Jeon Somi.
He provides that perfect, unexpectedly deep rap cadence that makes Baby Saja’s “chaotic maknae” identity pop so well.
Discography and The Real-World Impact
Even though the Saja Boys are a fictional boy band, they still went to become chart competitors.
The group’s biggest hits from the KPop Demon Hunters OST are “Your Idol” and “Soda Pop.”
“Your Idol” famously hit No. 1 on the US Spotify Daily Top Songs chart. This made the Saja Boys the highest-charting K-Pop boy band in US Spotify history at the time, which was widely reported by Forbes and The Straits Times.
The entire soundtrack also made history. It became the first movie soundtrack ever to have four songs concurrently land in the Billboard Hot 100 Top 10. “Your Idol” peaked high at an incredible No. 4 on the Billboard Hot 100.
Furthermore, both “Your Idol” and “Soda Pop” are individually RIAA Platinum certified, confirming each single surpassed 1 million sales/streaming units in the U.S.!
Yep, a fictional band beat some actual industry giants! Can you imagine not even being real and going platinum on real-world charts?
To further blur the lines between reality and fantasy, the five vocal artists behind the Saja Boys—Andrew Choi, Kevin Woo, Neckwav, SamUIL Lee, and Danny Chung—have officially joined the Federation of Korean Music Performers (FKMP).
So, that means that these artists are now officially recognized performers under the rights system. There’s a real chance of the Saja Boys to potentially exist as a real-world project!
Conclusion: Saja Boys Is A Fictional K-Pop Boy Band
The Saja Boys may have started as a fictional K-Pop boy group, but their success made a lot of noise in the real world. With their unique personas, addictive music, and razor-sharp concept, it’s no wonder that they have impacted such a large population.
The influence of Saja Boys expanded well beyond the movie. It went on to create fandoms, spark conversations and theories about the industry, and even genuine recognition for the real-world voice actors.
Fictional or not, these five phenomenal characters– Jinu, Abby, Mystery, Romance, and Baby– have captured hearts. They may not be real, but the obsession definitely is. Go listen to their songs and tell us which ones you liked the most!
FAQs
The Saja Boys are based on K-pop archetypes rather than specific groups. Director Maggie Kang cited inspirations from several groups, including BTS, Monsta X, and TXT.
The film features subtle queer-coded themes and is noted for its progressive take on identity. Although it is not explicitly labeled as an LGBTQ+ narrative.
The Saja Boys are not BTS. They are a fictional group created for the Netflix movie. While members like Jinu and Baby may have design inspirations linked to BTS members (like Jungkook), they are distinct characters that satirize the industry’s tropes.
While the fictional Saja Boys achieved record-breaking success, in the real world, groups like BTS, Stray Kids, and SEVENTEEN are consistently considered the top male groups.
Their single “Your Idol” is widely reported to have broken the record for the highest placement achieved by a male K-pop group on the US Spotify Daily Top Songs chart at the time of its release.