1. Flower of Evil (악의 꽃)
Hiding a twisted past, a man maintains his facade as the perfect husband to his detective wife — until she begins investigating a series of murders.
It has an average vote of 8.207 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 8.661 on TMDB.
3. W: Two Worlds Apart (W : Two Worlds Apart)
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 8.499 on TMDB.
4. Extracurricular (인간수업)
Determined to escape a dead-end life, a gifted high school student turns to a world of serious crime to ensure he can pay for college.
It has an average vote of 8.2 on TMDB.
5. 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 8.249 on TMDB.
6. 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 8.339 on TMDB.
7. Hi Bye, Mama! (하이바이, 마마!)
When the ghost of a woman gains a second chance at life for 49 days, she reappears in front of her remarried husband and young daughter.
It has an average vote of 8.114 on TMDB.
8. 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 8.6 on TMDB.
9. 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 8.405 on TMDB.
10. Stairway to Heaven (천국의 계단)
Song Ju and Jeong Seo who have lost a father and a mother respectively spend their childhood together like real siblings. Song Ju is there for Jeong Seo whenever she feels lonely and has a hard time, and Jeong Seo also relies a lot on Song Ju. However, after Jeong Seo's father gets married to Tae Mi Ra, Mi Ra and her daughter Yu Ri keep harassing Jeong Seo out of jealousy. Tae Hwa, Yu Ri's rough and wild older brother, has a crush on Jeong Seo who is pure and kind unlike him.
It has an average vote of 8.083 on TMDB.
11. She Was Pretty (그녀는 예뻤다)
After a complete reversal of fortune and looks, childhood sweethearts reunite for the first time in 15 years as employees at a fashion magazine.
It has an average vote of 8.26 on TMDB.
12. 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 8.544 on TMDB.
13. The Great
A genre-bending, anti-historical ride through 18th century Russia following the rise of Catherine the Nothing to Catherine the Great and her explosive relationship with husband Peter, the emperor of Russia.
It has an average vote of 8.171 on TMDB.
14. 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 8.424 on TMDB.
15. Anne with an E
A coming-of-age story about an outsider who, against all odds and numerous challenges, fights for love and acceptance and for her place in the world. The series centers on a young orphaned girl in the late 1890’s, who, after an abusive childhood spent in orphanages and the homes of strangers, is mistakenly sent to live with an elderly woman and her aging brother. Over time, 13-year-old Anne will transform their lives and eventually the small town in which they live with her unique spirit, fierce intellect and brilliant imagination.
It has an average vote of 8.698 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 8.473 on TMDB.
17. 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.
18. The Queen's Gambit
In a Kentucky orphanage in the 1950s, a young girl discovers an astonishing talent for chess while struggling with addiction.
It has an average vote of 8.5 on TMDB.
19. The Vampire Diaries
The story of two vampire brothers obsessed with the same girl, who bears a striking resemblance to the beautiful but ruthless vampire they knew and loved in 1864.
It has an average vote of 8.336 on TMDB.
20. The Glory (더 글로리)
After a childhood marked by pain and violence, a woman puts a carefully planned revenge scheme in motion.
It has an average vote of 8.559 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 8.356 on TMDB.