1. 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 8.652 on TMDB.
2. 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 8.63 on TMDB.
3. 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 8.5 on TMDB.
4. 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 8.447 on TMDB.
5. What's Wrong with Secretary Kim (김비서가 왜 그럴까)
Lee Young-Joon's family runs a large company and he works as the vice-president of the company. He is smart, rich and handsome, but he is arrogant. His secretary is Kim Mi-So. She has worked for him for years and she is perfect for him, but Kim Mi-So decides to quit her job.
It has an average vote of 8.4 on TMDB.
6. 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 8.6 on TMDB.
7. Mischievous Kiss (장난스런 키스)
A clumsy high-school girl - Oh Ha-ni - is at the bottom of her class, and she has had a crush on a popular genius, Baek Seung-Jo, ever since she first laid eyes on him.
It has an average vote of 7.767 on TMDB.
8. Squid Game (오징어 게임)
Hundreds of cash-strapped players accept a strange invitation to compete in children's games—with high stakes. But, a tempting prize awaits the victor.
It has an average vote of 7.832 on TMDB.
9. 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 8.415 on TMDB.
10. 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 8.241 on TMDB.
11. Love Alarm (좋아하면 울리는)
Love Alarm is an app that tells you if someone within a 10-meter radius has a crush on you. It quickly becomes a social phenomenon. While everyone talks about it and uses it to test their love and popularity, Jojo is one of the few people who have yet to download the app. However, she soon faces a love triangle situation between Sun-oh whom she starts to have feelings for, and Hye-young, who has had a huge crush on her.
It has an average vote of 8.406 on TMDB.
12. My Love From Another Star (별에서 온 그대)
An alien who came to Earth 400 years ago is almost able to return to his own planet, but when he meets a famous actress, he doesn't want to go home.
It has an average vote of 8.346 on TMDB.
13. Hotel Del Luna (호텔 델루나)
When he's invited to manage a hotel for dead souls, an elite hotelier gets to know the establishment's ancient owner and her strange world.
It has an average vote of 8.54 on TMDB.
14. Doctors (닥터스)
A recalcitrant, delinquent teen girl meets a compassionate teacher, who inspires her to alter her path and become a street-savvy neurosurgeon.
It has an average vote of 8.2 on TMDB.
15. Are You Human? (너도 인간이니)
Nam Shin is a son from a family who runs a large company. After an unexpected accident, he falls into a coma. His mother Oh Ro-Ra is an authority on brain science and artificial intelligence. She creates an android named Nam Shin III which looks like just like her son Nam Shin. The android pretends to be Nam Shin and he has a bodyguard So-Bong.
It has an average vote of 8.493 on TMDB.
16. The 100
100 years in the future, when the Earth has been abandoned due to radioactivity, the last surviving humans live on an ark orbiting the planet — but the ark won't last forever. So the repressive regime picks 100 expendable juvenile delinquents to send down to Earth to see if the planet is still habitable.
It has an average vote of 7.913 on TMDB.
17. 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 8.352 on TMDB.
18. Vincenzo (빈센조)
During a visit to his motherland, a Korean-Italian mafia lawyer gives an unrivaled conglomerate a taste of its own medicinewith a side of justice.
It has an average vote of 8.565 on TMDB.
19. The Heirs (상속자들)
After a chance encounter in LA, two teens from different social backgrounds reunite at an exclusive high school attended by Korea's über rich.
It has an average vote of 7.8 on TMDB.
20. Start-Up (스타트업)
Young entrepreneurs aspiring to launch virtual dreams into reality compete for success and love in the cutthroat world of Korea's high-tech industry.
It has an average vote of 8.348 on TMDB.
21. KONOSUBA – God's blessing on this wonderful world!! (この素晴らしい世界に祝福を！)
After a traffic accident, Kazuma Sato’s disappointingly brief life was supposed to be over, but he wakes up to see a beautiful girl before him. She claims to be a goddess, Aqua, and asks if he would like to go to another world and bring only one thing with him. Kazuma decides to bring the goddess herself, and they are transported to a fantasy world filled with adventure, ruled by a demon king. Now Kazuma only wants to live in peace, but Aqua wants to solve many of this world’s problems, and the demon king will only turn a blind eye for so long…
It has an average vote of 8.612 on TMDB.