Worstgen

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Sasaki Kojirō
known as the most powerful living creature in the world, on land, sea, and air. People consider him the best fighter in the world; in a one-on-one, Kaidou is the one to triumph. The most challenging/durable to be defeated. The strongest pirate in the world. The strongest man in the world. The strongest drinker in the world. The strongest living creature in the world.
comrade
comrade
Only the next Joyboy at the end of the series is supposed to surpass the Dark Joyboy which Kaido was, through his ability to make everyone into his allies. Similarly, Kaido made people his allies by crushing them with strength, as compared to the real Joyboy who did so through kindness.
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Sasaki Kojirō
I had never looked at it this way, but the dark Joyboy concept is interesting. Kaidou imprisons and enslaves people, while Joyboy frees them. Kaidou gave meaning to Joyboy's existence; Joyboy forms allies through friendship, while Kaidou does so through force, breaking spirits. It's noticeable that the key to defeating Kaidou was the numerous allies of Joyboy, including Joyboy himself, against Kaidou alone. Even his
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Sasaki Kojirō
daughter became an ally of Joyboy.
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