|Yo-han is the son of a minister. With a carefree personality, Yo-han enters a theological seminary but then quits. After finishing his duties as a Korean soldier assigned to the U.S. army, Yo-han works as an instructor in the education center in the Eighth U.S. Army in Korea. When Yo-han is chosen to teach at a military school in America, he rushes into marriage. However, he is suddenly blinded. In despair, Yo-han contemplates suicide. But then, he has a miraculous experience of hearing God's voice amidst brilliant light. Yo-han receives an awakening and newfound courage. He becomes friends with the shoe-shining kid, Jin-yong, in the Seoul Railway Station. Finally, Yo-han realizes his calling. He returns to his theology studies. In New York, with the help of the Helen Keller Foundation, Yo-han runs a church for the blind.