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K-Pop Demon Hunters: The animation and music behind Netflix’s record-breaker

K-Pop Demon Hunters -Mira, Rumi and Zoey (Image source - Netflix)
K-Pop Demon Hunters -Mira, Rumi and Zoey (Image source - Netflix)
Netflix's K-Pop Demon Hunters blends anime, 2D/3D fusion, and Korean culture to set new records and redefine modern animation.

The animation in K-Pop Demon Hunters pushed boundaries in 2025 by blending 2D flair with the depth of 3D environments. This fusion created an expressive, kinetic look that sets it apart from conventional animation styles. This combination allows characters to move with a far more heightened expressiveness while also maintaining cinematic depth. The result is both visually striking and narratively effective for the viewer.

Plot Summary

K-Pop Demon Hunters follows Huntr/x, a globally popular K-pop girl group consisting of Rumi, Mira, and Zoey, who secretly use their musical prowess and hidden magical abilities to fight soul-sucking demons. When a rival demon boy band called the "Saja Boys" emerges to capture fans' souls, the Huntr/x trio must combine their music, fighting skills, and friendship to protect humanity and activate a powerful magical barrier known as the Honmoon.

Anime and Comic Book Influences

The movie borrowed heavily from anime, with bold hairstyles, stylized faces, and exaggerated expressions. Director Chris Appelhans stated that: "He and co-director Maggie Kang took a lot of inspiration from the faces and the look and feel of anime but did a CG version of it." In practice, this meant characters broke from rigid realism in favor of hyper-dynamic motion and emotion. According to Kang, "The animators transformed the characters' faces based on the tone, allowing them to be both glamorous pop stars as well as have silly faces and hyper-ridiculous expressions."

Variable frame rates for storytelling

A technical highlight of K-Pop Demon Hunters' animation was its use of variable frame rates. The film's animation was "on twos a great deal," giving it a bold, graphic language that's reminiscent of comic books and traditional animation. This deliberate choice contributed to the overall stylized feel of the film.

Smear frames and their cinematic impact

The animators made heavy use of smear frames and skipped in-betweens, particularly in combat sequences. These techniques add quite a bit of intensity to the action scenes while saving on production time. Combined with creative cinematography, every battle feels dynamic and visually bold. According to Appelhans, "The studio wanted to do new things we haven't seen in animation."

Every battle feels dynamic and visually bold (Image source - Netflix)
Every battle feels dynamic and visually bold (Image source - Netflix)

Character design and expression

A standout element was how the film balanced character appeal with bold exaggeration. The directors were keen to avoid the fear of making female characters look "ugly," opting instead to give them realistic, unpolished behaviors and exaggerated faces. This approach to character design gives each character a unique identity while remaining tied to the group dynamic.

A genuinely catchy soundtrack

The music is a central element of the film's narrative. The soundtrack was produced by top K-pop industry professionals, including Teddy Park of The Black Label, who has worked with artists like Black Pink. 

The original songs are not just background music; they are also heavily used as plot devices used to express emotions and even serve as weapons. For example, Huntr/x's song "Takedown" is an angry diss track aimed at their rivals, while the Saja Boys' song "Your Idol" is a hypnotic anthem designed to manipulate the masses. 

The soundtrack also features contributions from real-world K-pop artists, including members of the group Twice, who perform an alternate version of the song "Takedown".

The Saja Boys: Baby, Mystery, Jinu, Romance, and Abby (Image source - Netflix)
The Saja Boys: Baby, Mystery, Jinu, Romance, and Abby (Image source - Netflix)

Korean cultural integration

K-Pop Demon Hunters grounded its premise in Korean cultural authenticity. From reimagined hanbok designs to traditional jewelry (norigae) and myth-inspired demon lore, the movie blended modern aesthetics with heritage, which is extremely important. As director Maggie had previously stated to the media: "Once they really grounded the mythology into Korean shamanism, it really opened up this opportunity to feature so many different eras of Korea, really show the history of how Korean music evolved through the ages." These details enhance the film’s authenticity and originality while also distinguishing it from various Western animated projects.

Voice cast

The film features a star-studded cast with distinct speaking and singing voices. For Huntr/x, Arden Cho voices Rumi, with vocals by EJAE. May Hong voices Mira, with vocals by Audrey Nuna. Ji-Young Yoo voices Zoey, with vocals by Rei Ami. The Saja Boys are voiced by Ahn Hyo-seop (Jinu, with vocals by Andrew Choi), along with voice work from SungWon Cho (ProZD) and Kevin Woo. Other key characters include Ken Jeong as Bobby, the group's manager, and Daniel Dae Kim.

The animation in K-Pop Demon Hunters pushed boundaries in 2025 by blending 2D flair with the depth of 3D environments (Image source - Netflix)
The animation in K-Pop Demon Hunters pushed boundaries in 2025 by blending 2D flair with the depth of 3D environments (Image source - Netflix)

Sony’s animation role

Beyond the movie's technical achievements, K-Pop Demon Hunters reinforced Sony’s dominance in animation innovation. The film joined a growing list of works—alongside Spider-Verse and The Mitchells vs. the Machines—that redefine what mainstream animation can look like. "The studio's mentality of not having a 'house style' has been an evolution that I am so happy to be championing," as Chris Appelhans put it.

Record-breaking viewership

The film became a massive commercial success on Netflix, setting new records. Currently, it is the most-watched title on Netflix in history, with a cumulative 266 million views, surpassing the previous record held by Squid Game. The film also topped the movie charts in over 35 countries, a testament to its global appeal.

KPop Demon Hunters blends modern aesthetics with heritage (Image source - Netflix)
KPop Demon Hunters blends modern aesthetics with heritage (Image source - Netflix)

Conclusion

The animation of K-Pop Demon Hunters was more than eye candy... it represented a shift in how mainstream films blend culture, technology, and style. With its anime-inspired exaggeration, 2D/3D fusion, and cultural integration, the movie not only entertained but also inspired with its unforgettable soundtrack. Director Maggie Kang admitted that "she didn't think it was even possible for a movie to be this popular," demonstrating the film's unexpected cultural impact. K-Pop Demon Hunters isn’t just another animated film... it’s pretty much where the future of animation is heading.

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 09 > K-Pop Demon Hunters: The animation and music behind Netflix’s record-breaker
Darryl Linington, 2025-09- 5 (Update: 2025-09- 5)