Hey, guys! :)

I'm looking for some romance dramas where the main male lead is extremely smart and outstanding in his profession (maybe one of the best in Korea, Asia or even in the world). I don't mean someone who has power or money (he may have them), but just someone who is really brilliant with what he does (he might be an extremely good doctor, detective, killer, anything). I don't mean someone only good, but extremely good - that hardly anyone can beat him, nor compare to him.

For examples, from dramas on air: Jin Yan from 'Love Me if You Dare'; Lee Hae Sung from 'D-Day' (a bit; they never said he's one of the best doctors in Korea, but he's extremely skilfull).

Other dramas with such a lead: Yong Pal, City Hunter, Good Doctor, Healer, Itazura na Kiss (it's fine), Liar Game (no romance though), Rich Man, Poor Woman, A Man Called God, You Who Came from the Stars.

Mr brain -japanese drama
A current Japanese drama called painless:the eyes for signs he can detect people's illnesses just by looking at them I don't think there's romance though
kagi no kagatta heya-guy who solves murder cases that happen inside locked rooms
I remember you -kdrama 
God's quiz
The girl who sees scents -girl who helps solve crimes not really a genius but smart enough
Hope this helps somewhat
Don't really have geniusses but here are four people who are good at their job:
Rurouni Kenshin
: (not a drama though) Kenshin as a former assassin is pretty much the best samurai ever 
IRIS: one of the best in the elite NSS force is set up and has to fight the baddies and get back into the NSS. you can expect lots of action here (bonus: TOP is a super creepy killer here)
Kurosagi: the best swindler who swindles other swindlers
Kagi no Kakatta Heya: a guy from a security firm is super intelligent and solves locked room murders (but i've only seen the 1st episode so can't really vouch for this one)

Good luck!
Romance:
Secret Love Affair (gifted pianist)

Little Romance:
Nirvana in Fire (genius strategist) the romance is established prior the start of the story and is not the main point of the story but it is there
The Royal Tailor (genius fashion designer) not exactly romance with the typical sense, more like pure love (that is somewhat one-sided)

......
Poongsan (genius smuggler) if you don't read much into it, it has romance, otherwise erm...it's allegorical "romance"
Falling for Innocence the main lead is known as something, forgot the nickname for some reason.  Anyway, he is feared for being the best at taking companies from people and then tearing them apart and selling them.

Healer the male lead is the best "carrier" for people.  He essentially is the best delivery man/go between.  (This and city hunter have a ton of similarities, including the female lead)

Faith, male lead is part of the most feared warriors at the time. (same male lead as city hunter)

I Remember You - Brilliant criminal investigator.


Galileo (japanese), there are a few sequels to it
Jenius
The Darkness
Both are web dramas
Hhm not sure if all of these fully fit your criteria but (in)

I hear your Voice - the protagonist not only can read people's mind he is also a very skilled  and feared fighter
Bachelor's Vegetable Store - depicts the real life of one of the most successful fruit and vegetable chain store owners in Korea, with the beautiful Ji Chang Wook
City Hall - has a very skilful politician fighting his father who is an eminent 'kingmaker' in Korean politics 
Midas - great economist pitted against a world renowned fund manager
Pasta - excellent Chef 
Secret Garden - CEO of a very successful chain of department stores
The Princess' Man - does not quite fit here but the hero is pitted against one of the most skilled politicians of the time and definitely worth checking out

I hope you will enjoy some of them, Luna




Thank you, guys! You are great! ^^ I'll definitely try most of them, starting with I Remember You :)

Please, keep giving your suggestions :3
Evil Minds
+1 God's Quiz & I Remember You
Medical Top Team
Aozora no Tamago
Dr. Frost
Triangle (just finished it so it's on my mind) - the lead is a reckless genius and plots against all odds to take over the power and wealth in the town. In the beginning he has nothing except the clothes on his back but at the end he has everything  - including the girl lol. Si Wan acts in it (he's so pretty!!!) The first few episodes are kind of boring but it sets the stage. It becomes really interesting about 4 episodes in.

Heartless City - The main character is a something like IRIS, except on the other side of the law. He plots against the police as well as with every bad politician and corrupt officials in the city. 
Death Note, U should know this one, there's a new series up for 2015
Jenius 
Kagi no kakatta Heya - Brilliant detective, love this series. 
Dr. Frost, smart phsycologist 
I might even put in Kurosjitsuji here, even though it's a movie. Demon butler. 
Nazotoki wa dinner no ato de - also a detective series, lead role also with a brilliant butler. Just follow the Arashi line and you'll have a whole bunch of detectives. 
+1 Faith
+1 IRIS (and its other sequels, spinoffs, adaptations)

You could check out Nodame Cantabile and its Korean version Tomorrow's Cantabile as well.
Movie Secret features the same kind of musical genius, but I don't remember much since it's been too long. He may or may not be the best.
The lead character (Kim Young Kwang) in Guardians aka Lookout is described that way in the beginning of the show.  Its airing now.