Highlights

  • All Might: A symbol of peace, he faced a devastating defeat against All For One that led him to seek revenge, showcasing his resilience.
  • Ochaco Uraraka: Despite a loss to Bakugo, she proved her strength and grew to become a proficient fighter, inspired to excel.
  • Kai Chisaki: Overhaul suffered great losses, including losing his quirk and arms, leading to a surprising development in his character arc.

In a world of superheroes and super villains like the one in My Hero Academia, it’s inevitable that climactic battles are reoccurring events that not only give audiences a thrilling diversion, but also have an enormous impact on each character’s development.

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There have been many times when losing a fight has changed a character forever, regardless of whether they’re a hero or a villain. However, characters that died or disappeared were not taken into account here, only those who had a lot of development as a result of a hard-hitting defeat. These are some of the best examples of this occurrence throughout the course of My Hero Academia.

Spoilers Ahead!

8 All Might

Lost To All For One

All Might crying out for Nana Shimura while Gran Torino flies him away.

Toshinori Yagi, better known as All Might, is the #1 Pro Hero of Japan and the famous Symbol of Peace. Reaching such a prestigious status was not easy, as he was forced to go through many trials and tribulations before he could call himself that, and the most important event in All Might’s life was undoubtedly his initial encounter with the villainous All For One.

Despite fighting alongside his powerful mentors, Nana Shimura and Gran Torino, their combined strength was not enough to defeat All For One. Nana even sacrificed herself so All Might could live on and get stronger. After this tragic defeat, Toshinori traveled to the United States and became a powerful hero so he could later go back to Japan and ultimately get revenge on his nemesis.

7 All For One

Lost To All Might

All Might punches All For One and destroys his helmet.

Things were not easy for the villain, either, since All For One – one of the main antagonists of My Hero Academia – also had to go through some harsh defeats in order to become stronger. Firstly, he was brutally defeated by All Might when the hero returned to Japan, who completely destroyed the Symbol of Evil's head and forced him to retreat and lie low for many years.

Even after All For One managed to come back, and even arranged the initial lineup of the League of Villains, he fought All Might and was defeated once again. Because of this, he had to change his strategy completely, and began relying on his successor, Tomura Shigaraki, way more.

6 Ochaco Uraraka

Lost To Katsuki Bakugo

Ochaco cries after her father tells her she's proud.

Since the beginning of the series, Ochaco Uraraka has always been seen as a sweet girl with a useful Gravity quirk perfect for assisting, but it was not so fitting for actual one-on-one fighting. So, when she was pitted against Katsuki Bakugo during the U.A. Sports Festival, everybody was surprised, as they all thought this was an unfair match-up.

Uraraka did not hold back, and showed him how strong she truly was, to the point that she even came up with her own Ultimate Move. Even though Bakugo respected her enough to treat her like any other opponent, she was ultimately defeated. This didn’t matter, because Uraraka could now show the world that she could be an efficient fighter, something that would later inspire her to intern in Gunhead’s agency and become proficient at Gunhead Martial Arts.

5 Katsuki Bakugo

Lost To The League Of Villains

Dabi (and the rest of the LoV) succesfully kidnaps Bakugo.

Katsuki Bakugo was not always a pleasant person to be around. Despite his impressive talents and incredible strength, he acted extremely arrogant, stubborn, and rude, even against those who wanted the best for him. This hubris is what let the League of Villains kidnap him during the Forest Training Arc.

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Even though his classmates offered to escort him back to camp so he could be safe, Bakugo rejected their offer, which gave Mr. Compress an opening to swiftly kidnap him and take him back to their hideout. This triggered a chain of events that led to All Might’s rematch against All For One, which forced the #1 Pro Hero to retire. Bakugo felt extremely guilty of this and began blaming himself for All Might’s retirement, something that would change his outlook on heroism (and his relationship with Deku) forever.

4 Izuku Midoriya

Lost To Katsuki Bakugo

Bakugo defeats Deku in their second battle.

The rivalry between Izuku Midoriya and Katsuki Bakugo goes way back. Since he was born quirkless, Deku has always felt inferior to his longtime rival. This changed when he inherited One For All, which let him become a Pro Hero and attend U.A. High School. Despite this newfound strength, he still couldn’t defeat Bakugo. They clashed many times, but their most significant battle was after the Provisional License Exam.

Since he felt guilty about All Might’s retirement, and he failed to get his Hero License, Bakugo forced Deku to fight him in what ended up being an incredible battle that showed off both characters' abilities. Despite all his growth and power, Deku still couldn’t defeat Bakugo. However, this somehow ended up being a win for both of them. He confessed that he was All Might’s successor, and began working together with Bakugo so they could both get even stronger, making Deku realize that he could really trust his old friend.

3 Kai Chisaki (Overhaul)

Lost To Izuku Midoriya And Tomura Shigaraki

Overhaul crumbles as Shigarai cuts his arms off.

Under the villain name of Overhaul, Kai Chisaki became one of the most malicious entities in the world of My Hero Academia. He was the leader of the Shie Hassaikai Yakuza organization, and he used both his quirk and his power to exploit a vulnerable little girl so he could erase quirks from the entire world.

Fortunately, the heroes manage to raid Overhaul’s base of operations, rescue Eri, and imprison him after Izuku Midoriya gave him an incredible beating. His misfortunes did not end there, as Tomura Shigaraki confronted him after he was arrested and cut both of his arms off, which prevented Chisaki from ever using his quirk again. After all of that, Overhaul turned into a shell of his former self, as he became obsessed with waking his boss from his coma. He even listened to Deku and agreed to someday make amends with Eri, which was a shocking development.

2 Rikiya Yotsubashi (Re-Destro)

Lost To Tomura Shigaraki

Re-Destro becomes Shigaraki's new minion.

Re-Destro (Real name Rikiya Yotsubashi) used to be one of the biggest villains in this world, since he’s the descendant of the legendary villain Destro and the President of the Detnerat Company, which let him found the modern Meta Liberation Army. However, Re-Destro ended up making one enormous mistake: messing with Tomura Shigaraki and the League of Villains.

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Re-Destro really thought that he could defeat Shigaraki, and he was actually really close to doing so, but he accidentally triggered Shigaraki’s memories, which resulted in the awakening of his Decay quirk. Because of this, Re-Destro suffered an incredible defeat and agreed to join forces in order to establish the Paranormal Liberation Front, where he became Shigaraki’s compliant underling. This is quite sad for someone who used to be such a feared villain.

1 Enji & Shoto Todoroki

Lost To Dabi

Shoto Todoroki tells his father, Enji, that they will stop Toya together.

During the Paranomal Liberation War, the fiery villain known as Dabi revealed that he was actually Toya Todoroki, the long-lost son of Endeavor (The #1 Pro Hero at the time) and the brother of Shoto Todoroki. The shock of this unexpected twist left Endeavor speechless, which prevented him from fighting back when Dabi targeted him with his flames.

Luckily, Shoto Todoroki confronted him, and both siblings used the same Flashfire Fist attack. However, despite his undeniable power, Shoto's flames were no match for Dabi, who ultimately knocked him out and later escaped alongside the rest of the League of Villains. This fateful encounter almost ruined Endeavor’s recent character development and growth, but his family helped him realize that they could all fight together in order to defeat Dabi and bring Toya back. This defeat gave both Endeavor and Shoto newfound purpose and motivation to team up against a shared opponent.

My Hero Academia
My Hero Academia (2016)
Action
Superhero

Release Date
April 3, 2016
Seasons
7
Studio
Bones
Creator
Kōhei Horikoshi
Streaming Service(s)
Crunchyroll , Hulu