Ko Bok-Chil is good and kind, but stubborn. When he repeats to fail in the business, he considers to kill himself. But, he makes up his mind to make a comeback and challenge the world. He experiences human life by selling books in monthly installment. He usually does a lot of good things, but their results are not good. When he has to take care of a young orphan named Young-Hee, he starts to work hard again. He loves a beautiful girl, who is a daughter of millionaire. He contributes to her father's company using an outstanding PR skill, so that he is accepted to get married to her. But, he realizes that he is not eligible as a director of big company, and leaves Seoul alone.