What if one day a simple penny brought two people together?  They say when you find a penny on the ground, you'll be lucky. But this penny in partucular has a diffrent plan.

Meet Lu Han, A man whose life isn't so great. Ever since he signed with SM entertainment, his life has been a living hell. Eating less, Less sleep, So much scheduals. One day he goes out for some fresh air when something magical comes out of his pocket.

Now meet Kim Shin Yeong. A Happy-Go-Lucky girl who love photoghraphy. One day she goes out for a jog when suddenly, she gets lost. She keeps on walking until she finds, a penny. Ever since then she has gotten so much good luck. But that's just the first.

Will Faith bring this Unlucky Artist to a Lucky average girl? Can they accept the path that is set for them?

Penny, penny, bring me luck. Because I'm the one who picked you up