I used to love to watch these old reruns as a boy. It is a story of an ex Yakuza, who later went blind. He is a man who is haunted by his past evil deeds. Sometimes drink too much to try to forget his evil deeds. Despite his flaws, he seeks redemption by helping those in need. He basically uses his skills for good, rather than evil purposes. This is a mythical story, but there is actually a good lesson to be learned by it. I found inspiration in it. https://www.youtube.com/watch?v=fSTG4Nap3vY