1. It's Okay to Not Be Okay (사이코지만 괜찮아)
Desperate to escape from his emotional baggage and the heavy responsibility he’s had all his life, a psychiatric ward worker begins to heal with help from the unexpected – a woman who writes fairy tales but doesn’t believe in them.
It has an average vote of 8.5 on TMDB.
2. Goblin (쓸쓸하고 찬란하神-도깨비)
In his quest for a bride to break his immortal curse, a 939-year-old guardian of souls meets a grim reaper and a sprightly student with a tragic past.
It has an average vote of 8.7 on TMDB.
3. Boys Over Flowers (꽃보다 남자)
Unassuming high school girl Jan-di stands up to — and eventually falls for — a spoiled rich kid who belongs to the school's most powerful clique.
It has an average vote of 8.2 on TMDB.
4. The Umbrella Academy
A dysfunctional family of superheroes comes together to solve the mystery of their father's death, the threat of the apocalypse and more.
It has an average vote of 8.582 on TMDB.
5. W: Two Worlds Apart (더블유)
After being pulled into the webtoon world created by her father, a surgical resident gets entangled in a murder mystery involving the story's hero.
It has an average vote of 8.492 on TMDB.
6. Meteor Garden (流星花园)
An ordinary girl is admitted to the most prestigious school in the country where she encounters F4, an exclusive group comprised of the four wealthiest and handsomest boys in the school - Dao Ming Si, Hua Ze Lei, Xi Men and Mei Zuo.
It has an average vote of 8.5 on TMDB.
7. Riverdale
Set in the present, the series offers a bold, subversive take on Archie, Betty, Veronica and their friends, exploring the surreality of small-town life, the darkness and weirdness bubbling beneath Riverdale’s wholesome facade.
It has an average vote of 8.5 on TMDB.
8. The King: Eternal Monarch (더 킹 : 영원의 군주)
Korean emperor Lee Gon tries to close the doors to a parallel world which was opened by demons; a detective tries to protect the people and the one she loves.
It has an average vote of 8.4 on TMDB.
9. My First First Love (첫사랑은 처음이라서)
Due to various personal reasons, a group of Yun Tae-o’s friends move into his house, where they experience love, friendship, and everything in between.
It has an average vote of 8.3 on TMDB.
10. Sweet Home (스위트홈)
As humans turn into savage monsters and the world plunges into terror, a handful of survivors fight for their lives — and to hold on to their humanity.
It has an average vote of 8.4 on TMDB.
11. Stranger Things
When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl.
It has an average vote of 8.613 on TMDB.
12. Squid Game (오징어 게임)
Hundreds of cash-strapped players accept a strange invitation to compete in children's games. Inside, a tempting prize awaits — with deadly high stakes.
It has an average vote of 7.831 on TMDB.
13. A Love So Beautiful (아름다웠던 우리에게)
Love is as tough as it is sweet for a lovestruck teenager, whose relationship with her next-door neighbor transforms as they grow into adulthood.
It has an average vote of 8.4 on TMDB.
14. Weightlifting Fairy Kim Bok-joo (역도요정 김복주)
A competitive swimmer crosses paths with his childhood friend, a rising weight lifting star, and realizes that she has a secret crush on his cousin.
It has an average vote of 8.621 on TMDB.
15. Chilling Adventures of Sabrina
As her 16th birthday nears, Sabrina must choose between the witch world of her family and the human world of her friends. Based on the Archie comic.
It has an average vote of 8.222 on TMDB.
16. True Beauty (여신강림)
Lim Ju-kyung is a high school student. Since she was little, she has had a complex about her appearance. To hide her bare face, Ju-kyung always wears make-up. Her excellent make-up skills make her pretty and she hides her bare face in front of others. She gets involved with 2 men; Lee Su-ho and Han Seo-jun.
It has an average vote of 8.403 on TMDB.
17. Navillera (나빌레라)
A 70-year-old with a dream and a 23-year-old with a gift lift each other out of harsh realities and rise to the challenge of becoming ballerinos.
It has an average vote of 8.6 on TMDB.
18. My Holo Love (나 홀로 그대)
Unexpected love finds a lonely woman when she forms a connection with a humanlike hologram who looks exactly like his prickly creator.
It has an average vote of 8.5 on TMDB.
19. Miraculous: Tales of Ladybug & Cat Noir (Miraculous, les aventures de Ladybug et Chat Noir)
Marinette and Adrien, two Parisian teenagers, are entrusted with powerful jewels in order to transform into superheroes Ladybug and Cat Noir. But neither hero knows the other's true identity — or that they're classmates!
It has an average vote of 8 on TMDB.
20. Sky of Love: Someone I love is there (恋空)
An ordinary senior high school girl named Mika meets Hiro, a showy boy with dyed hair and pierced ears. It is a "pure love" story of the two going through many unimaginably sad incidents while nurturing their love single-mindedly. It not only depicts the first love of the senior high school couple but also weaves "a story of Mika and Hiro" through episodes probably familiar to anybody, such as warmth and affection of their family members supporting the two, importance of living, interactions with friends, and so on.
It has an average vote of 7.6 on TMDB.
21. All of Us Are Dead (지금 우리 학교는)
A high school becomes ground zero for a zombie virus outbreak. Trapped students must fight their way out — or turn into one of the rabid infected.
It has an average vote of 8.326 on TMDB.