Meet the Kim family.

On the surface they may seem like your usual, above-average, rich and spoilt aristocrats but they really are far from it. A normal family's relationships are built on trust and love, but they're relationships are built on a foundation of secrets. Deep. Scarring. Hurtful secrets. Secrets that soon unravel and cause even more discord in the already dysfunctional family. A family with three handsome heirs: Kim Jaejoong, Kim Sang Bum & Lee Minho. 

Three heirs with three different personalities and three different futures.

The mess that is the Kim family would have stayed like that if one day the charming, Park Hana, hadn't stepped onto the scene.
With her beauty and equally matched brains.. the humble Park Hana is quick to own both Minho and Kimbum's hearts.
What the two brothers are unaware of is the fact that the Park Hana they've fallen in love with is not a mere girl at all.

She's a girl with a deep attachment to their past. A girl that will rollick their existence and cause them to question even the most stable things in their superficial life. She'll teach them to live.

But to teach someone to live doesn't mean that you have to stay with them till their last breath. 
You come into their life and then leave as quick as you came. Like a mild breeze.

The three brothers' refusal to let Hana go and their ambition to fight for her affections will cause them to fall apart and then come back together..
She'll leave on their placid hearts something that they'll never be able to erase no matter how much they try.

She'll leave an undying imprint.