Native Title	불가살
Also Know as	Bulgasal, The Immortal, Immortality, Invincible
Director	Seo Jae Won, Kwon So Ra
Writer	Jang Young Woo
Distributor	tvN
Air Time	Saturday, Sunday
Content Rating	15+ - Teens 15 or older
Runtime	16 episodes
Genre	Fantasy, Thriller, Mystery, Drama, Supernatural, Romance, Horror, Action
Language	Korean
Country	South Korea
Release Date	2019-12-18
End Date	2020-02-06

“Bulgasal: Immortal Souls” (Korean: 불가살) is a 2021–2022 South Korean fantasy drama that aired on tvN from December 18, 2021, to February 6, 2022, spanning 16 episodes. It was also released globally on Netflix, allowing international audiences to experience its mythical storytelling.

The series was directed by Jang Young-woo (“Mr. Queen”) and written by the sibling duo Kwon So-ra and Seo Jae-won, weaving a dark yet emotionally charged tale of revenge, destiny, and redemption across centuries.

At the heart of the drama lies the mythical creature “Bulgasal,” a cursed being of folklore said to be immortal, feeding on human blood, yet forever tormented by its fate.

Plot Overview

The story centers on Dan Hwal (Lee Jin-wook), a man turned into an immortal being, the Bulgasal, more than 600 years ago. Once human, his life is ruined when he is cursed with immortality and robbed of his family and humanity. Consumed by rage, Hwal spends centuries hunting the reincarnations of those who wronged him.

His quest leads him to Min Sang-un (Kwon Nara), a woman mysteriously tied to his tragic past. Unlike others, she remembers her previous lives and carries secrets that could either end Hwal’s curse or plunge him deeper into despair.

Their intertwined fates unfold against the backdrop of Korea’s shifting eras, blending historical settings with modern-day Seoul, where Hwal confronts ancient enemies reborn in new forms. Themes of vengeance, forgiveness, and the eternal search for humanity underpin the narrative, making “Bulgasal: Immortal Souls” both a supernatural thriller and a poignant human drama.

Cast & Characters

Main Cast

Lee Jin-wook as Dan Hwal – Once human, now cursed as an immortal Bulgasal, burdened with centuries of revenge and loneliness.
Kwon Nara as Min Sang-un – A woman with memories of her past lives, who becomes both the target and the key to Hwal’s redemption.
Lee Joon as Ok Eul-tae – A wealthy and influential immortal with sinister motives, embodying Hwal’s dark mirror image.
Gong Seung-yeon as Dan Sol – Hwal’s wife in a past life, whose reincarnation holds vital answers.

Supporting Cast

Jung Jin-young, Park Myung-shin, and others enrich the story with complex roles tied to the cyclical curse of reincarnation.

Reception

Domestic Reception

Ratings in Korea averaged around 3–5% nationwide, with strong viewership in younger demographics interested in dark fantasy.

International Appeal

On Netflix, the drama gained a devoted fanbase, particularly in Southeast Asia, North America, and Europe. Audiences praised its ambitious storytelling and cinematic visuals, though some found its pacing slower compared to other K-dramas.

Critical Response

Reviewers highlighted the series’ mythological depth, atmospheric world-building, and Lee Jin-wook’s haunting performance. While its heavy, tragic tone wasn’t for everyone, many critics saw it as a refreshing departure from lighter K-dramas of the same era.

Fun Facts & Highlights

Based on Korean Folklore

The Bulgasal myth stems from Korean legends about an immortal creature that cannot die or be killed.

Cinematic Quality

With a production budget exceeding 40 billion won (~$33 million), the drama was praised for its film-like visuals, detailed set design, and haunting CGI.

Actor Transformations

Lee Jin-wook underwent significant physical and emotional training to portray centuries of anguish as Dan Hwal.

Title Evolution

Early reports suggested alternative titles like “Immortal” before finalizing on “Bulgasal: Immortal Souls”.

Fan Discussion

Many fans debated the ending’s interpretation, particularly around the cyclical nature of fate and whether true redemption was possible for immortals.

Final Thoughts

“Bulgasal: Immortal Souls” is a bold and melancholic entry in the K-drama landscape, merging Korean mythology with modern storytelling. While not a light watch, its layered performances, dark fantasy themes, and emotional resonance left a lasting impact on audiences. For fans of supernatural epics like “Goblin” and “Kingdom”, this drama is a must-watch journey into the tragic beauty of immortality.

Where to Watch

South Korea: Originally aired on tvN.
International: Streaming worldwide on Netflix, with subtitles in multiple languages.

Gallery

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