Fans who love the anime they're watching interact with their favorite IP with a ton of passion. The sheer amount of thought they put into deciphering ongoing stories and filling the holes for any ambiguous plot threads shows just how much of an impact these fictional stories can have on the lives of the many people who get hooked on the stories and form an attachment to the characters.
As a result, several anime fans enjoy discussing certain theories that could be plausible despite the source material neither confirming nor denying these probabilities. For what it's worth, the following fan theories are pretty well-constructed and actually make the stories of their respective anime feel more epic and engaging.
7 Hiashi Hyuga's Master Plan (Naruto)
One of the most entertaining fan theories in Naruto stems from the ruthless nature of the Hyuga and how much they treasure power over everything else. While Hiashi does redeem himself over the course of the series, there's no denying that a part of him would still want his clan to have as much power as possible.
So, this theory states that Hiashi orchestrated the relationship between Naruto and Hinata from the get-go. From having a child just around the time Kushina was also pregnant to ensuring that both Hinata and Naruto get to share some valuable time together, his master plan finally succeeded in the end.
6 Boros Was Sent On Earth To Die (One-Punch Man)
Boros is one of the more notable villains in One-Punch Man and one who is actually powerful enough to withstand a single blow from this powerful hero. When he reached earth, Boros said that a seer guided him towards this realm to conquer it for himself.
So, it's pretty plausible that this intergalactic seer just wanted to get rid of Boros for his unpredictable nature. They sensed an extremely powerful presence on Earth in the form of Saitama and sent Boros there on a suicide mission that would do away with him for good.
5 Light Becomes A Shinigami (Death Note)
Death Note is one of the most popular anime of all time. The battle of wits between L and Light is the stuff of legends, ending on a memorable note before Light manages to make Kira's will absolute all over the world. However, all of this comes crashing down at the end when Near manages to outsmart Light and catch him in the act as Kira.
This leads to Light getting shot and running away before eventually passing away due to his injuries. It was stated before that users of the Death Note never get to enter Heaven or Hell. Since the Shinigami Realm also exists out of these domains, it's quite possible that Light ended up being reincarnated as a Shinigami himself.
4 The Movie Is About The Sex Industry (Spirited Away)
Spirited Away is one of the best Studio Ghibli movies around and one that fans should definitely check out. The movie is full to the brim with charming visuals and interesting characters, but some viewers have actually devised a fan theory for the nature of this movie that turns it into something truly sinister.
Various instances in Spirited Away lend to the notion that the movie draws several parallels with prostitution. Notable instances include when Chihiro has to change her name after signing a contract with Yubaba and the creepy No-Face getting weirdly attached to her in the movie.
3 Ash Is Actually In A Coma (Pokémon)
Throughout the Pokemon anime, fans raise many questions about the various surreal aspects of the series. The one part of the long-running anime that makes absolutely no sense is that Ash never ages, regardless of how many years he spends in the many adventures he went through across the regions in Pokemon.
Fans have given a reason for this: Ash has been in a coma from the very start of the series. He is constantly imagining all these new adventures, with his companions representing facets and desires present in his personality. It's a riveting fan theory that adds a ton of depth to the generally safe storyline for Pokemon.
2 The Infinite Tsukuyomi Succeeded (Naruto)
Another fan theory from Naruto and this particular theory is a doozy indeed. The Infinite Tsukuyomi is a plan that Obito was pushing for quite some time, and he actually manages to activate it and get the majority of the ninja world in an eternal dream, barring the four main characters.
However, some theories state that even Team 7 was caught in this powerful genjutsu. Everything that happened since this moment was Naruto's dream where they fought for things to go back to normal, eventually leading to Sasuke returning to the village and Naruto being crowned Hokage after a point.
1 Jesus Was A Stand User Who Thwarted The Pillar Men (JoJo's Bizarre Adventure)
JoJo's Bizarre Adventure is easily one of the most over-the-top anime around, and the sheer ludicrousness of the events that take place in this show makes it all the more unique. The inclusion of Stands turns the battles of the series into something truly exciting and allows Araki to show his wonderful creativity in the series' many fights.
One popular theory floating in the JoJo fanbase is that Jesus was actually a Stand User who fought the Pillar Men. Since his might was too much for the Pillar Men to bear, they went into hibernation until the events of Battle Tendency, where their destruction was unleashed upon the world once again.