Summary
Izuku Midoriya is the main protagonist fromMy Hero Academiaon an adventure to become the greatest hero in the narrative, but contrary to the premise, Deku isn’t the best hero there is in the series. While Deku possesses all the qualities of a hero, what defines the best is more than what the protagonist has achieved or may even achieve. Some other characters from Kohei Horikoshi’sMy Hero Academiahave already done that.
Being thebest hero inMy Hero Academiatranscends merely possessing a powerful quirk. While a formidable quirk can undoubtedly aid a hero in defeating villains,true heroism is defined by one’s readiness to take decisive and uncertain actions in the most dire situations.

Regrettably,Deku has often faltered in seizing these critical moments.
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Why Isn’t Deku My Hero Academia’s Best Hero?
Deku’s Emotional Aspect Is What Keeping Him From Being The Best Hero
Beyond possessing apowerful quirk inMy Hero Academiaand adeptly defeating villains, the best hero in the series is expected to excel in adverse situations, maximizing their impact when circumstances are at their most challenging. It’s often said that one’s true character emerges in adversity.For a hero, maintaining a calm mental state in the worst situationsand making rational decisions that benefit others are crucial indicators of genuine heroism.
WhileDeku excels in several aspects of being a hero, his emotional nature often hinders him from being the best hero in the series. There have been instances where his decisions, driven by emotion, risked jeopardizing not only himself but also those around him. For example, when faced with Overhaul in episode #4 ofMy Hero Academiaseason 4, Izuku’s emotional response nearly escalates the situation. Fortunately, Mirio Togata intervened, demonstrating better judgment at the critical moment.

Lemillion Fullfills The Criteria For Being The Best Hero In My Hero Academia
Lemillion Succeeds In Being The Best Even In The Worst Situations
While Deku was inspired to become a hero by admiring All Might, Mirio Togata, akaLemillion, was inspired to pursue heroism after being saved by a hero, fueling his desire to save others in return. Similar to Deku, Lemillion wasn’t initially blessed with a powerful quirk. However, this didn’t deter him from pursuing his dreams. He demonstrated that dedication and training can transform weaknesses into strengths. But it isn’t until season 4,episode #11 ofMy Hero Academia,that Lemillion’s greatest quality is truly showcased in his battle against Overhaul.
After losing his quirk, Lemillion continued to protect Eri and faced off against Overhaul. At this critical moment, Lemillion relied on his experience and training to make calm, calculated decisions to avoid Overhaul and land a hit or two in return. Had his focus not been on Eri’s safety, Lemillion might have won the battle. This battle proves that even in the worst situation, Lemillion is at his best. All of Mirio’s qualities highlight his suitability as a hero and position him as a better hero than Deku inMy Hero Academia.

My Hero Academia
Cast
Anime series My Hero Academia follows Izuku Midoriya, a boy born without superpowers in a world where most have them. Despite his lack of abilities, he enrolls in a prestigious hero academy, striving to learn the true essence of heroism and fulfill his dream of becoming a hero.

