Passionate Love (2013)

The rich guy who has both the looks and wealth, who seems to have it all on the outside but grows up with family issues falls in love with a girl who is the opposite.

While the two dramas don't really look similar at first glance, there were a lot of similarities in term of the love rival and family confict plotlines. Not to mention that both dramas had Jun Kwangryul and the late Jeon Misun playing similar roles as parents of the protagonist.