Daehyun lost the love of his life and wishes he could go back in time to fix his biggest regret, but when he gets a second chance, will it make things better or worse for him?

The supreme leader of the Kei Empire Jung Daehyun is at battle with their long-time rival, the Joko Alliance and their newest leader, Yoo Youngjae. He's a little mysterious, a little laid-back and a little too good to be true. As time goes on, he finds himself more and more obsessed with the enemy against the beliefs of the Empire. Amongst the political corruption, battles and scandals on the plan

Life is full of up and downs, it's like a roller coaster as people like to say. A rainy day is enough change everything in their life. Kim Himchan, a world known race car driver and Jung Daehyun, one of the most famous actors and models in Korea meet in a rainy day. But fate prepares a surprise for them.