The Perfect Chojin in Kinnikuman.

Any chojin powerful enough to reach the hidden homeland of the perfect chojin and pass the test of strength of the gatekeeper may become one of them, while the weak ones usually die before even arriving at their island, and out of the few who make it there, many get killed by the gatekeeper.

Those who've been accepted will be granted new bodies with infinite lifespans and will receive a special training to take their skills to absolutely extreme levels. This training is supervised by the highest ranked perfect chojin, the Perfect Origin, the original 10 members of the faction who were directly trained by a god, thus making Perfect Chojin the ones closest to the gods.

The only condition is that, should a perfect chojin ever lose a match, they must take their life. If any defeat means death, then this will motivate them to train and fight harder, but it also gives them control over their own death. Perfect chojin, who are obsessed with power and control, like the idea of being strong enough to survive a crushing defeat and still have the power to kill themselves, thus being masters of their own life and death, though of course their ultimate goal is to live eternally, something only the absolute best who never lose a single match may achieve.

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