Shota Aizawa(相澤 消太 Aizawa Shōta), also known as theErasure Hero: Eraser Head(イレイザー・ヘッド Ireizā Heddo), is a Pro Hero and the homeroom teacher of Class 1-A at U.A. High School. Known for his stoic and pragmatic approach, Aizawa is a highly skilled hero who specializes in using his Quirk,Erasure, to nullify the abilities of others, making him a valuable asset in combat and a respected mentor to his students.

Shota Aizawa’s hero costume consists of a simple but functional black outfit. He wears a long-sleeved, loose-fitting shirt and matching pants tucked into his boots, paired with a utility belt. His most notable accessory is his signature capture weapon: a long, gray scarf that he uses skillfully in combat to immobilize enemies. Additionally, Aizawa carries bright yellow goggles hidden under his scarf, which he wears during battles to protect his eyes while using his Quirk.

Before becoming a teacher at U.A. High School, Shota’s goggles were silver in color, and his utility belt was smaller. During his time as a student at U.A., his hero costume was slightly different, featuring a black jacket, pants, and fingerless gloves, with goggles added to his outfit in his second year.

In formal settings, Shota opts for a black suit, white dress shirt, and blue tie, neatly grooming his hair into a low bun. When relaxing in his staff apartment, he dresses casually in a loose, long-sleeved black shirt, with his hair tied into a messy bun.

Following the intense battles of the Final War, Shota Aizawa experienced significant physical and emotional changes. During the fight against Tomura Shigaraki, Aizawa was forced to amputate his right leg to prevent the Quirk-Destroying Drug from erasing his abilities. As a result, he now uses a prosthetic leg. He also sustained severe injuries to his face, leaving him with a second scar stretching from his eyebrow to his lower eyelid. To protect his damaged right eye, Aizawa now wears an eyepatch.

In terms of appearance, Shota has adapted to his injuries and altered his look slightly. He now ties back a portion of his hair, leaving a long strand hanging over the right side of his face to cover his missing eye. His determination as a teacher and hero remains steadfast, despite the toll the war has taken on him physically.

Shota Aizawa is a stern and reserved individual, known for his high expectations of students and his pragmatic approach to teaching. He is driven by logic and has little concern for maintaining appearances or filtering his words. His blunt nature and tendency to nap in a sleeping bag during downtime give the impression of apathy, but beneath this exterior, he is deeply dedicated to his students’ growth.

Aizawa is known for expelling students who he believes are not suited for U.A. High. However, it is revealed that he re-enrolls them after the expulsion to give them a “death” experience that motivates them to push beyond their limits. Despite his reputation, he has not expelled any members of Class 1-A, but remains strict and uncompromising in his training methods, pushing students to face the harsher aspects of heroism.

While Aizawa may appear cold, he genuinely cares for his students and is willing to protect them at all costs. This was seen when he risked his life to save Tsuyu Asui from Tomura Shigaraki. He also expresses confidence in his students, believing in their potential to resist villainous influence. His nurturing side is evident in his role as Eri’s guardian, where he takes care of her without complaint, showing attentiveness even outside of his teaching duties.

Shota’s calm demeanor is occasionally disrupted by personal tragedies, such as the discovery of his friend Oboro Shirakumo’s fate. His grief and anger were evident when he confronted Kurogiri, the Nomu created from Oboro’s body. Aizawa displayed uncharacteristic rage, strangling Kyudai Garaki in a show of fury after learning the details of Oboro’s desecration.

Despite his strict nature, Aizawa is not without humor. He often smiles when impressed by his students or when successfully using his “rational deceptions” to push them to do better. His complex personality reflects a balance between discipline and deep care for those under his guidance.

Shota Aizawa is one of the most skilled Pro Heroes and teachers at U.A. High School, known for his exceptional combat ability and tactical thinking. His primary battle strategy involves nullifying his opponent’s Quirk with hisErasureQuirk and using hisBinding Clothto quickly restrain or defeat them. Even without his Quirk, Aizawa excels in hand-to-hand combat, making him a formidable fighter against Quirk-reliant enemies. His proficiency in battle creates opportunities for his allies, allowing them to gain the upper hand.

Aizawa’s combat style revolves around his signature weapon, theBinding Cloth, which he uses to immobilize and ensnare opponents. He also uses the cloth for enhanced mobility, allowing him to swing between buildings or structures during battle. It took Aizawa six years to develop this fighting style, which works seamlessly with hisErasureQuirk.

Aizawa has repeatedly demonstrated impressive stamina, continuing to fight even after suffering severe injuries. During the U.S.J. Incident, despite being gravely wounded, he remained conscious long enough to protect Tsuyu Asui from Tomura Shigaraki. In the Paranormal Liberation War, Aizawa even amputated his leg without hesitation to stop the effects of a Quirk-Destroying Bullet and continued to use his Quirk without showing significant pain.

Aizawa’s intelligence and observation skills are among his strongest assets. He can quickly evaluate his students’ personalities and mental states and is highly skilled at coordinating his Quirk and equipment in battle. Aizawa’s strategic mind allows him to devise quick countermeasures for enemies, even those immune to hisErasureQuirk. He is also adept at analyzing the mechanics of others’ abilities after witnessing them only once.

Despite initial reluctance, Aizawa has become a highly effective teacher at U.A. High. His no-nonsense approach to hero training focuses on instilling responsibility and pushing students to exceed their limits through his “rational deceptions,” such as threats of expulsion. Aizawa’s expulsion and re-enrollment method is designed to teach students the difference between self-sacrifice and throwing their lives away, helping them grow stronger. His teaching has been instrumental in shaping Class 1-A into a formidable group of future heroes. Additionally, Aizawa personally mentored Hitoshi Shinso, helping him refine his Brainwashing Quirk and master his fighting style, leading to his successful transfer to the hero course.

• Eyedrops:
  Shota Aizawa carries a small green case of eyedrops to combat the effects of dry eye, a side effect of using hisErasureQuirk for extended periods without blinking.

• Capturing Weapon (捕縛武器 Hobaku Buki):
  Aizawa’s primary weapon is a cloth made from steel wire alloy woven with carbon nanofibers. This highly durable fabric allows him to immobilize opponents and is versatile enough for both offense and defense.

• Eraser Goggles:
  Shota is known for the gold goggles he wears around his neck, usually hidden by his scarf. These goggles obscure his line of sight, making it difficult for enemies to determine whose Quirk he is erasing. He received these goggles during his school days from his friend, Oboro Shirakumo.

• High-Density Weights (Final Exams Arc):
  During the Final Exams Arc, Aizawa and other teachers wore high-density weight bracelets to handicap themselves while fighting their students, adding an extra challenge to the exam.

• Caltrops:
  Aizawa used caltrops during his practical battle against Team Todoroki and Yaoyorozu. These spikes were effectively combined with his capturing weapon, limiting his opponents’ mobility by creating dangerous terrain.

• Knife:
  Shota carries a large knife, mainly used to cut his capturing weapon free if it becomes stuck. The knife can also be employed as a combat tool when necessary.

• Prosthetic Leg:
  After severing his right leg during the fight against Tomura Shigaraki to stop the effects of the Quirk-Destroying Drug, Aizawa now uses a prosthetic leg.

• (To Class 1-A):
  “I’m sorry to tell you… that for the next three years… U.A. will run you through the wringer. That’s ‘Plus Ultra.’ Use your strength to overcome it all. So bring it.”

• (To All Might, regarding Izuku Midoriya):
  “He doesn’t… have no chance. That’s all I can say. Because if he had no prospects, I would cut him loose. There’s nothing crueler than letting someone chase their half-baked dreams.”

• (To Izuku Midoriya):
  “No good hero is a one-trick pony.”

• (To a Pro Hero, regarding Katsuki Bakugo and Ochaco Uraraka’s match):
  “Is the one who said he’s toying with her a pro? How many years of active duty? If that’s what you’re taking from this, then you can leave. No point in watching. Go home and start looking at job-hunting sites. She’s come this far, and he knows her strength. His caution shows that he recognizes her as a worthy opponent. It’s exactly because he wants to win so badly… that there’s no room for carelessness or holding back.”