A kid builds an empire out of nothing but fists and loyalty in post-war Japan, and the show treats every street fight like it actually matters. The gang structure is real enough that you believe these kids are solving problems the only way they know how. 156 episodes means this isn't a arc, it's a lifestyle, a slow documentary of what happens when a young guy refuses to stay small.
A young gang leader and the crew he heads find themselves caught up in one scrape after another, and the fights keep coming. Based on Motomiya Hiroshi's manga from Weekly Shonen Jump, this 1969 short-format TV adaptation mixes action and drama across 156 episodes, each about ten minutes long, which aired six days a week from Monday to Saturday.