O Amor Maior (2011)

- Both the MLs have special body reaction only towards the FLs but not other girls.

- Both the MLs are super stars and loved by the public; while the FLs are the one got criticized by the public.

- Underground relationships in both dramas.

- Both dramas make you laugh out loud!! :D

Dramas are similar when a male figure suffers from a heart disease.

in Greatest love the lead has an artificial heart that causes him problems and makes him think he's in love

The man is a famous star. The woman is a star, which career is facing trouble. She does sneaky and desperate things to try to make herself more popular..
His fans and the rumors of the relationship with her could ruin his career.
Somewhere in the middle another guy starts chasing her...
She is/was in female idol group and although most of the other members are her friends.. another one is her greatest enemy.

Seung Hee, after losing his girlfriend in a tragic accident, left for 3 years. When he came back, he sought to make a film in a rural area. Someone caught his eye - Bok Shil, who looks exactly like his deceased girlfriend, Hye Soo. Seung Hee followed Bok Shil in order to get some answers and ended up falling for her. Still the questions remain, is he attracted to Bok Shil because of the memories of his ex-girlfriend, or does he like Bok Shil for who she is? What happens when competitors come into the picture and families opposing their love?

Dramas are similar when a male figure suffers from a heart disease.

in Greatest love the lead has an artificial heart that causes him problems and makes him think he's in love

There were many small things in A Business Proposal that reminded me of my all time favorite: The Greatest Love.

Lee Shin is a university student majoring in modern music. He is the vocalist of the band "The Stupid" and also plays the guitar. He is known for his good looks and his strong passion for music but is in reality a cold person who is uninterested in non-music related things and has no dreams nor plans for the future. Shin initially likes a dance professor at his university, but this all changes when he meets Lee Kyu Won. Lee Kyu Won is a bright and outgoing student who was born into a prestigious family and is majoring in traditional Korean instruments, especially the gayageum. Kyu Won's grandfather, Lee Dong Gun, is one of the top 3 traditional musicians of his age, and his biggest wish is to have his granddaughter trained to become a traditional music prodigy in 10 years' time. Trying to live up to her grandfather's expectations, Kyu Won immerses herself in training and becomes a university student who knows nothing besides traditional music. As Kyu Won's friends are fans of "The Stupid", she was forced to go to the band's concert with them. There, she saw Lee Shin performing live and is immediately captivated by him.

A capable but unpopular showbiz manager, Kazuko, struggles to groom a younger, new male actor, Ryo, whom she had scouted, into a star. An unmotivated Ryo slowly becomes conscious of the pleasures of acting. Bonds of camaraderie grow, and before long, love gradually blossoms between them.

Dokko Jin and Cha Ji Heon are very similar characters and both dramas are very funny.

Both involve a man and a woman having the same profession. While the man is considerate "elite" in his, the woman is struggling heavilly both for recognition and with money.

Sun Fan is a stunt double who dreams of becoming a big star. When he suspects Fang Zi Hao, a famous singer, trying to steal his girlfriend, he beats the living daylight out of Fang. His attack against Fang incurs the wrath of Yu You Tong, who is a die-hard Fang fan. She mobilizes the fan base to attack him online. But to her dismay, instead of ruining him, the internet makes him an overnight star as people praise his skillful fighting moves. Because of one fight, four strangers suddenly become entangled in more ways than one.

Pontifex Rembrary, a character known for his divine powers, gets transported to a new world while fighting a devil. He possesses the body of Woo Yeon Woo, a member of an unpopular idol group, and helps turn the group's fortunes around after a disastrous live performance. With his charisma and divine powers, he becomes popular among fans but faces challenges from his past, contending with strange religious groups and the devil.

Both female leads are once in a popular girl band. The female lead in The Greatest Love is still in the entertainment industry whereas the female lead in One More Happy Ending has fade out from the entertainment industry.

Both about the behind the scenes of korean celebrity life. TheKingOfDramas focuses more on the drama making aspect, less on romance (but has very satisfactory romance from mid-end of drama, drama is abit more than just the romance);
meanwhile TheGreatestLove is about the lovestory of two k celebs (movie actor & former k pop girlband member who guests on variety shows).
Both great!!

FL was well known celebrity and left industry cause scandal alike to Doona.

Though story goes around FL getting attached in way to ML which is now big celebrity.