One for All: Izuku Midoriya’s Quirk in My Hero Academia explained

My Hero Academia catapults audiences into a universe bustling with superhuman abilities called “Quirks”. Amongst its wide cast, Izuku Midoriya, also known as “Deku,” is the central protagonist, whose journey from Quirkless to inheriting one of the world’s most potent Quirks makes him a cornerstone of the series. 

This article dives into Midoriya’s unique Quirk, its capabilities, and limitations.

Core Dynamics

Izuku Midoriya is initially introduced as Quirkless. However, fate takes a turn when he inherits “One For All” from the number one hero, All Might. 

“One For All” is a cumulative Quirk, passed down through generations, accumulating power with each successor.


Enhanced Physical Prowess: “One For All” supercharges his physical abilities. This amplification spans strength, speed, agility, and durability. Whether shattering solid barriers with a punch or racing at blinding speeds, the Quirk transforms Midoriya into a powerhouse.

Emission of Energy: As he delves deeper into the Quirk’s mechanics, Midoriya discovers the capability to release stored energy as ranged attacks, exemplified by techniques like “Delaware Smash.”

Advanced Techniques 

Midoriya’s journey with One For All is a steep learning curve. From reckless initial usage to refined control, his relationship with the Quirk evolves throughout the show. 

Percentage Control: To control self-inflicted injuries, he learns to harness specific percentages of “One For All’s” full power. This modulation allows him to strike a balance between potency and self-preservation.

Full Cowling: An advanced technique where Midoriya evenly distributes a controlled percentage of “One For All” throughout his body. This consistently boosts his overall capabilities without concentrating power (and risk) in a single area.

Shoot Style: A combat adaptation focusing on leg-based attacks, mitigating the strain on his previously injured arms.

One For All’s Vestiges: As the narrative unfolds, he gains access to the imprints of past users of the Quirk. This not only offers him guidance but also unlocks additional powers that previous holders possessed, vastly expanding his arsenal.

Midoriya 1
Image Source: Bones Inc.


Physical Recoil: Initially, Midoriya’s body isn’t conditioned to handle the Quirk’s sheer force. Using it results in severe injuries, especially when accessing its full power.

Overwhelming Legacy: The weight of upholding “One For All’s” legacy, combined with its connection to the series’ primary antagonist, places a heavy emotional and moral burden on Midoriya.

Complex Mastery: As Midoriya gains access to prior holders’ abilities, the task of mastering multiple Quirks adds layers of complexity to his training.

Character Implications

“One For All” is more than just a superpower for Midoriya; it represents his aspirations, burdens, and growth. 

His initial Quirkless status fuels his empathy toward societal underdogs. When gifted with One For All, it becomes a testament to My Hero Academia’s narrative that heroes are made, not born.

Also Read: Luffy and Nami’s relationship in One Piece explained

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