Netflix’s New Superhero Series is a Major Hit with Critics and Fans Alike

Netflix has been on a hot streak with Korean originals, but every so often a title lands that feels genuinely different from everything around it. ‘The WONDERfools,’ a South Korean superhero comedy action adventure created by Kang Eun-kyung and directed by Yoo In-sik, dropped on Netflix on May 15, 2026, and the critical response has been exactly the kind of buzz a streaming platform dreams of.

The series received generally positive reviews from both domestic and international critics upon its release, and audience reactions have been equally warm. One critic scored it 8.5 out of 10, describing the show as “so darn delightful” and noting that it never takes itself too seriously, even when the plot leans into apocalyptic chaos. For a superhero drama, that tonal tightrope walk is harder to pull off than it sounds, and the fact that ‘The WONDERfools’ manages it with such apparent ease is precisely what has the entertainment world paying close attention.

What the Superhero K-Drama Is Actually About

Set in 1999, when Y2K fears were at an all-time high, ‘The WONDERfools’ follows a motley crew of awkward, ordinary citizens in Haeseong City who suddenly gain superpowers. Rather than polished, laser-focused heroes, the show leans into the chaos of unpreparedness. The series focuses on the experiences of “flawed superhumans” who are unable to control their abilities and end up using them unintentionally, which is the kind of comedic framework that gives the ensemble room to breathe and go completely off the rails.

Park Eun-bin plays Eun Chae-ni, a 27-year-old woman known as “Lady Trainwreck” around her hometown of Haeseong for her clumsy ways, who lives with a dangerous heart condition and dreams of seeing the Northern Lights and hiking Mount Kilimanjaro.

When her scheme to fake her own kidnapping goes fatally wrong, she wakes up with teleportation powers and a superheart that refuses to let her stay dead. Her best friend Kang Ro-bin becomes super-strong, and town complainer Son Kyung-hoon can suddenly stick to anything, making for one of the more entertainingly useless superhero rosters in recent memory.

Lurking beneath Haeseong’s mundane exterior is a dark history tied to scientist Ha Won-do, who ran an orphanage as cover for immoral experiments to develop a super-serum that grants eternal life, experimenting on the children who lived there. That backstory is what gives ‘The WONDERfools’ its emotional weight, anchoring the comedy in something genuinely unsettling.

Park Eun-bin and Cha Eun-woo Lead a Career-Best Ensemble

Park Eun-bin is familiar to Netflix subscribers from her smash hits ‘Extraordinary Attorney Woo,’ ‘Castaway Diva,’ and ‘The King’s Affection,’ but critics are suggesting this role sits in a category all its own. Ilgan Sports called her performance an “overwhelming one-woman show” that easily anchored the series, which is particularly significant given the strength of the supporting cast around her.

Reviews praise Park Eun-bin for carrying the series through sheer force of personality, while Cha Eun-woo’s restrained performance brings depth to his character’s backstory. For Cha Eun-woo, who plays Lee Un-jeong, a quiet telekinetic civil servant with a traumatic past, this is also a uniquely significant project.

This is Cha Eun-woo’s final role before his military discharge, expected in January 2027, following his massive popularity in ‘True Beauty,’ ‘Island,’ and ‘Rookie Historian Goo Hae-ryung.’

Korean critics including Hankook Ilbo, Delighti, and Next Daily praised Cha’s restrained and stable acting as a mature step forward, highlighting his subtle use of eye work, breathing control, and micro-expressions to convey the character’s inner tension without awkwardness. International outlets echoed that sentiment, with Variety India describing his performance as solid and noting that whimsical, slapstick comedy scripts appear to be his natural forte.

The Netflix K-Drama Reviews Championing Its Creative Team

Director Yoo In-sik of ‘Extraordinary Attorney Woo’ reunites with Park Eun-bin in ‘The WONDERfools,’ with the actress once again at the center of a wildly original premise. That reunion is not incidental. It speaks to an intentional creative partnership producing some of the most distinctive television coming out of South Korea right now.

Ilgan Sports praised Yoo’s rhythmic action sequences, particularly a long, one-take rescue scene, while IDN Times highlighted the distinct mise-en-scène, fast camera movements, sudden close-ups, and whimsical sound design that enhanced the multi-layered comedic scenes.

Hankook Ilbo described the series as a “Korean version of ‘Guardians of the Galaxy,'” praising its charm in placing flawed, minor characters deeply rooted in Korean social realities inside a popular superhero framework, creating unpredictable developments filled with B-grade humor and warm humanism.

That comparison to the Marvel property is doing a lot of work, suggesting the show has found a tonal balance that Western superhero content has struggled to maintain in recent years. iMBC awarded the series 3 out of 4 stars, describing it as a warm story that comfortably embraces human flaws through the solidarity of its quirky characters.

The Y2K Setting That Makes the Show Feel Freshly Resonant

The Y2K setting adds a nostalgic charm that reviewers note makes the drama’s anxiety and uncertainty feel freshly resonant. Grounding a superhero origin story in the specific dread of millennial panic, the fear that civilization was about to collapse at the stroke of midnight, turns out to be an inspired choice.

As New Year’s Eve 1999 looms over Haeseong City, the apocalyptic panic spread by the Church of Eternal Salvation turns out to be less about millennium dread and more about one man’s secret mission to conquer mortality at all costs.

The show was initially being developed based on Stan Lee’s The B-Team in 2018, but was later taken over by Nangmancrew and developed as an original production. That evolution away from its source material appears to have worked in the series’ favor, giving the writers room to embed the story in a specifically Korean cultural and social context that feels wholly its own.

For director Yoo In-sik, the ending reflects the series’ core message, that “only those who have truly questioned why they were given power can use their powers the right way.”

With a script by Kang Eun-kyung, who penned ‘Gyeongseong Creature,’ and direction from Yoo In-sik, the show is equipped with the necessary pedigree to succeed, representing an ambitious attempt to package a very specific, quirky Korean comedy sensibility into a global format.

The finished product has clearly delivered on that ambition, arriving as one of the more talked-about premieres the streamer has had this year, and with audience scores and critical reception both trending positively, the question now is whether a second season is already in the works, given that open-ended finale.

If you were one of the people who binged the whole thing in a single sitting, who do you think the real heart of Team WONDERfools turned out to be: Chae-ni with her stubborn refusal to stay dead, or Un-jeong quietly holding everyone together from the shadows?