Not that anon, but he saves them from Evangelion.>And what happens to the one that failed to save everyone?
No one really knows how the loops work because the creator never bothered to explain things. Some think the loops are just different universes with characters that look the same as the ones from the OG universe but aren't the same with the exception of Kaworu, others think each loop happens after the previous one ends in a "Bad End", and others think it's the same universe but that it always resets itself for some reason. So, it's hard to say what happens to the characters after each loop, maybe their souls get reincarnated and are born as new versions of themselves in a new loop once the old loop resets, or maybe they just die forever (except kaworu because his soul can't really die unless the universe collapses upon itself and ends) and the story continues in another universe with characters that look like the OGs but aren't really them. Anon, no one knows.