High school student Han Tae-O first met Kang In-Ha as a classmate at his new high school. Han Tae-O has a dark background. Unlike Han Tae-O, Kang In-Ha comes from a wealthy chaebol family that runs the Kango Group. Although they come from completely different backgrounds, they have certain things in common that create a friendship. Now, as adults, Kang In-Ha wants to ascend the throne at Kango Group and Han Tae-O wants to succeed in life. To achieve his goal, Han Tae-O decides to make Kang In-Ha's dream come true.