Easy Fortune Happy Life (2009)

Both dramas deal with the arrogant male+innocent female theme. They have a very similar feel (although DBY is cheesier).

The same female lead. The stories give me the same feeling.

Although Easy Fortune Happy Life is alot more cheesy than Goong, to me, they both have the same feel to them.
-For money, the rich men marry the innocent girl.
-Men have a girlfriend on the side.

In both dramas the grandfather gives the female lead his inheritance and whoever married her gets it. However in Something About 1 Percent the female leads saves the grandfather. In Easy Fortune Happy Life the female lead's grandma saves the grandfather.

Similar plot. Kind-hearted woman saves elderly man, who then decides she deserves his entire fortune. Arrogant grandson wants fortune and after hijenks falls in love with woman.

The same actor and the plot is similar - bad rich boy and poor innocent girl.

"Rikon Doukyo" centers around husband Konaka Masaru and wife Ichinose Naoko who seem to have a happy family life. All this comes to a seemingly abrupt end when the couple decides to divorce. Yet, the couple soon finds themselves living together again even though they are no longer married ...

They both have Blue Lan as the male lead. They are both cohabitation drama and the tone of the dramas are similar.

Basically the same exact plot. The father of the main lead writes in his will that he gives all of his inheritance to the poor female lead (daughter of his first love) and the male lead can only share if he marries her so he tries to seduce her to take the inheritance but falls in love with her

Plot is very similar poor girl saves a rich elderly arrange marriage etc. When you watch it you going to see the similarities.