Recommendations

Both are about sons of noble from a lowborn mother who will rise above barriers of social class, nepotism, scheming etc to do exceptional things in their field at their time and place. Political drama, jealousy, friendships,and underdog are major themes, YoungShil deals with astronomy and science while HurJun deals with medicine

Part of the same series, both are set in the WW 2 time frame. Same male lead. Same nostalgic feel! If you liked Rosy Business or No Regrets, this one won't disappoint.

Can't believe none put this drama into recomendations yet! :O
It's almost same story just with different ending ;)

Both have a main lead dealing with traumas of their mother's dead. In the secondary couples the husband takes advantage of their wife for their own gain.

While watching, I couldn't help but think of the other movie and how super similar they are.
-Boy x Boy relationship
-Work-place Environment
-Superior x Subordinate

The way the male lead talks and thinks about the female lead reminds me so much of The Greatest Love. Both dramas have hilarious male leads.

WHTMF is quite similar to UY in the sense that there is a lot of development within the family that you see over a period of time. Moon Tae Joo reminds me a lot of the husband in UY and by the you see a lot of love within the family. Both very funny at times and also they both have serious moments. These two are part of the longer dramas that I really enjoyed watching. I hope you do too. <3

Gender bender Historical Romance, both have amazing scenery and romance between a cross dresser and the male lead.

They're both stories about arranged marriage, but Marrying School Girl is about 2 teenagers getting married and My Little Bride is about a teenage girl marrying an older guy. Anyways, My Little Bride is so cute! It's a must-watch, I think :)

Both are light comedies. The plot is quite similar: A rich man who lost his parents doesn't remember who he is and meets a poor girl and falls in love. Both male leads are quirky and adorable. Both female leads are super cute. The acting is great in both dramas and they give you the same vibe.

Both dramas involve the male lead getting a heart transplant surgery, and ends up falling for the fiancee of his donor. This leads to their personalities changing for the better as well.

Both movies are heist movies. They revolve around a group of thieves/scammers who steal from people.

They both have private dectetives who do anything for money and women, but have a sense of justice of some sort. The main leads in both series have the same vibe. The only difference between the dramas is the sci-fi focus on The Crossing Hero, but even in the action, Ji Woo and Hong Xiao Dong are two sides of the same coin. If you like Fugitive you will like TCH.

Both movies show stories of a male and a female teaming up to split up a couple.
However, the stage in life when that happens is different - the stakes are higher in "Honey Enemy", as the couple is about to get married in a few days time, whereas "Our Times" is about high school love.
Both worth a watch :)