1. Twenty Five Twenty One (스물다섯 스물하나)
In a time when dreams seem out of reach, a teen fencer pursues big ambitions and meets a hardworking young man who seeks to rebuild his life.
It has an average vote of 8.709 on TMDB.
2. The Legend of the Blue Sea (푸른 바다의 전설)
A mermaid from the Joseon period ends up in present-day Seoul, where she crosses paths with a swindler who may have ties to someone from her past.
It has an average vote of 7.4 on TMDB.
3. Dead Boy Detectives
Two teen ghosts work alongside a clairvoyant to solve mysteries for their supernatural clientele — until a powerful witch complicates their plans.
It has an average vote of 7.8 on TMDB.
4. Raising Voices (Ni una más)
When a 17-year-old reports a sexual assault at her high school, an investigation upends her life and tests her relationships.
It has an average vote of 7.844 on TMDB.
5. Fate/Apocrypha (Fate/Apocrypha)
The theft of the Greater Grail from Fuyuki City leads to a splintered timeline in which the Great Holy Grail War is waged on an unprecedented scale.
It has an average vote of 7.465 on TMDB.
6. Crash Landing on You (사랑의 불시착)
A paragliding mishap drops a South Korean heiress in North Korea -- and into the life of an army officer, who decides he will help her hide.
It has an average vote of 8.58 on TMDB.
7. Bodies
One victim, found dead on a London street. Four detectives, in four different time periods, must solve the mystery to protect Britain's future.
It has an average vote of 7.12 on TMDB.
8. King the Land (킹더랜드)
Amid a tense inheritance fight, a charming heir clashes with his hardworking employee who's known for her irresistible smile — which he cannot stand.
It has an average vote of 8.106 on TMDB.
9. Maid Sama! (会長はメイド様!)
Misaki Ayuzawa is the first female student council president at a once all-boys school turned co-ed. She rules the school with strict discipline demeanor. But she has a secret—she works at a maid cafe due to her families circumstances. One day the popular A-student and notorious heart breaker Takumi Usui finds out her secret and makes a deal with her to keep it hush from the school in exchange for spending some time with him.
It has an average vote of 8.5 on TMDB.
10. NANA (NANA)
Nana Osaki is a guarded and ambitious young woman with a strong will and a rough past. She is the vocalist for a punk band called Black Stones and she desires fame and recognition more than anything else. Nana Komatsu is an outgoing and flighty young woman with a weak will and a stable past. Her life revolves around her desire to find love and marriage. The two meet for the first time while traveling to Tokyo - in pursuit of their respective dreams - and they later decide to be roommates. Although drastically different people, the two become very close and together they find out if their biggest dreams have room for their best friend.
It has an average vote of 8.347 on TMDB.
11. The Testament of Sister New Devil (新妹魔王の契約者)
Toujou Basara is a high school student whose father has suddenly just remarried. His father then departs overseas leaving Basara with two new beautiful step-sisters. Little does he know, his new sisters, Mio and Maria are actually the new Demon Lord and a succubus!? Almost trapped into a life of servitude, Basara forms a reverse contract by accident and ends up becoming Mio's master! Hijinks ensue as Basara finds himself in one ecchi situation after another. However, Mio's life is in danger as she is pursued by demons and heroes!
It has an average vote of 8.005 on TMDB.
12. ONE PIECE
With his straw hat and ragtag crew, young pirate Monkey D. Luffy goes on an epic voyage for treasure.
It has an average vote of 8.179 on TMDB.
13. The Stand
After a deadly plague kills most of the world’s population, the remaining survivors split into two groups - one led by a benevolent elder and the other by a maleficent being - to face each other in a final battle between good and evil.
It has an average vote of 6.838 on TMDB.
14. Extraordinary You (어쩌다 발견한 하루)
When a high-school girl finds that she is merely a character from a comic book whose destiny is decided by the writer, she decides to change the plot to suit her desires and find the love of her life.
It has an average vote of 7.977 on TMDB.
15. Power Book III: Raising Kanan
Set in South Jamaica, Queens, in 1991, this prequel to "Power" revolves around the coming of age of Kanan Stark.
It has an average vote of 8.362 on TMDB.
16. 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.
17. X-Men
The X-Men are an elite team of mutants, genetically gifted human beings with superpowers, sworn to fight for mutant rights against hostile Government agencies, whilst at the same time protecting mankind from mutant supremacist Magneto who seeks to destroy the human race in return for the atrocities committed against mutant kind.
It has an average vote of 8.188 on TMDB.
18. I Am Not a Robot (로봇이 아니야)
Kim Min Gyu has wealth and success, but lives an isolated life due to his allergy of people. He then meets and falls in love with a girl who is pretending to be a robot for her ex-boyfriend, a genius robots professor.
It has an average vote of 8.338 on TMDB.
19. Oh My Venus (오 마이 비너스)
Dumped by her boyfriend of 15 years for gaining weight, a lawyer gets help from a hotshot personal trainer to get in shape and turn her life around.
It has an average vote of 8.2 on TMDB.
20. Itaewon Class (이태원 클라쓰)
In a colorful Seoul neighborhood, an ex-con and his friends fight a mighty foe to make their ambitious dreams for their street bar a reality.
It has an average vote of 8.444 on TMDB.