1. Blue Birthday (블루버스데이)
The series tells the story of Oh Ha-rin, who travels to the past through mysterious photos left by her first love, Ji Seo-jun. Since they were eight years old, they had been close friends, but he died by suicide on her birthday ten years ago.
It has an average vote of 5.6 on TMDB.
2. Legally Dad (서류상 아빠)
Orphan Ah Young is a financially struggling 23-year-old who takes care of her 8-year-old sister Dan Bi while juggling part-time jobs. One day a 28-year-old man Yoo Sang appears in front of Ah Young offering to be her dad through a signed agreement.
It has an average vote of 3.615 on TMDB.
3. Love Me in Three Days (时限三天爱上我)
Shan Yi Fan suffers from a strange disease; if he has five seconds of physical contact with someone he will change into that person's appearance and won't be able to change back until three days later. One day, he transforms into Luo Luo's cheating ex-boyfriend during the middle of their arguing and she mistakenly follows him instead, only to accidentally kiss. Surprisingly he transforms back to himself! With Luo Luo's kiss being his antidote, what else is a domineering CEO to do but to keep her by his side at all costs.
It has an average vote of 5 on TMDB.
4. Nevertheless, (알고있지만,)
The intoxicating charm of a flirtatious art school classmate pulls a reluctant love cynic into a friends-with-benefits relationship.
It has an average vote of 7.5 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 8.358 on TMDB.
6. Game of Thrones
Seven noble families fight for control of the mythical land of Westeros. Friction between the houses leads to full-scale war. All while a very ancient evil awakens in the farthest north. Amidst the war, a neglected military order of misfits, the Night's Watch, is all that stands between the realms of men and icy horrors beyond.
It has an average vote of 8.454 on TMDB.
7. The Big Bang Theory
Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
It has an average vote of 7.906 on TMDB.
8. 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 8.6 on TMDB.
9. The Queen's Gambit
In a 1950s orphanage, a young girl reveals an astonishing talent for chess and begins an unlikely journey to stardom while grappling with addiction.
It has an average vote of 8.484 on TMDB.
10. The Boys
A group of vigilantes known informally as “The Boys” set out to take down corrupt superheroes with no more than blue-collar grit and a willingness to fight dirty.
It has an average vote of 8.474 on TMDB.
11. Scarlet Heart: Ryeo (달의 연인 - 보보경심 려)
A story of a 25-year-old Go Hajin who is transported back in time to the Goryeo Dynasty. She then wakes up in the body of Lady Hae Soo and finds herself amongst the ruling princes of the Wang Family.
It has an average vote of 8.553 on TMDB.
12. 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 7.818 on TMDB.
13. 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 8.213 on TMDB.
14. It
In 1960, seven outcast kids known as "The Losers' Club" fight an evil demon who poses as a child-killing clown. Thirty years later, they reunite to stop the demon once and for all when it returns to their hometown.
It has an average vote of 6.9 on TMDB.
15. WandaVision
Wanda Maximoff and Vision—two super-powered beings living idealized suburban lives—begin to suspect that everything is not as it seems.
It has an average vote of 8.231 on TMDB.
16. Rebelde (Rebelde)
Six teenagers with different lives and personalities attend a prominent private school with only one thing in common: their vocation and passion for music.
It has an average vote of 8.412 on TMDB.
17. Chernobyl
The true story of one of the worst man-made catastrophes in history: the catastrophic nuclear accident at Chernobyl. A tale of the brave men and women who sacrificed to save Europe from unimaginable disaster.
It has an average vote of 8.675 on TMDB.
18. Strong Woman Do Bong Soon (힘쎈여자 도봉순)
Born with supernatural strength, Do Bong-soon fights evil and procures justice while getting tangled in a love triangle with her CEO boss and cop crush.
It has an average vote of 8.105 on TMDB.
19. How I Met Your Mother
A father recounts to his children - through a series of flashbacks - the journey he and his four best friends took leading up to him meeting their mother.
It has an average vote of 8.152 on TMDB.
20. 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 8.3 on TMDB.
