Out of the many common Shonen anime tropes, the tense yet entertaining dynamic between rivals has lasted for decades as the most iconic. Since action and competition are mostly prevalent across Shonen series, it makes sense why there are so many duos that can't help but clash in the most dramatic ways. That being said, this dynamic has become more of an overused trope than a cleverly chosen plot device because of how unoriginal many of these rivalries are, but there are a few that have tremendously subverted expectations.
Source：https://www.cbr.com/jujutsu-kaisen-gojo-geto-shonen-rivalry-redefined-anime/
