Kim Dong-joo

The paths of three people intersect at a hospital. A lawyer who mourns the death of his wife, a taxi driver who is taking care of his grandfather that suffers from Alzheimer's, and a girl who is looking for a bone marrow donor to save the life her mother.

Sang-hwan became a cop in order to help the downtrodden, but he doesn't get much respect. All that changes when he meets the Seven Masters.