Shota Aizawa

Shota Aizawa is a character in the manga and anime My Hero Academia, a Pro Hero known as Eraserhead, and a teacher at U.A. Academy. He is the homeroom teacher of Class 1-A and one of the school's most experienced teachers. At the start of the story, he is 30 years old, 183 cm tall, and his birthday is November 8th.
Aizawa is a tall, lean man with pale skin, tousled shoulder-length black hair, and dark eyes with visible signs of fatigue. He often appears sleepy and sleep-deprived, and his face typically displays a calm or slightly irritated expression. Despite his slight build, Aizawa is physically fit and possesses excellent reflexes and agility.
In everyday life, he prefers simple and comfortable clothing, not paying much attention to his appearance. As a hero, Aizawa wears a dark, form-fitting suit, goggles, and high boots. The main part of his outfit is a long, gray, captivating scarf, which he uses as a weapon: with it, Aizawa can bind and immobilize opponents.
Shota is serious, reserved, rational, and straightforward. He dislikes unnecessary fuss, meaningless conversations, and showboating. His calm expression and constant fatigue may make him appear cold or indifferent, but he actually cares deeply for his students. Aizawa is strict with them because he wants to teach them to survive and act like true professional heroes. He is willing to risk his life to protect his students.
His Quirk is called "Erase." It allows Aizawa to temporarily disable the Quirk of anyone he looks at. The ability lasts as long as Aizawa maintains eye contact, but it ends when they blink. Therefore, he uses special eye drops and tries to keep his eyes open as much as possible. In combat, Aizawa combines his Quirk with a captivating scarf, high reaction speed, and excellent physical prowess.

Shota Aizawa's entourage
Hizashi Yamada (Present Mic) is Aizawa's best friend and his colleague at UA. They've known each other since their school days. Yamada is very loud, energetic, and emotional, while Aizawa is calm and reserved. Despite their differences, they are close and trust each other.
Nemuri Kayama (Midnight) is Aizawa's colleague and longtime acquaintance. They attended UA together and later became professional heroes and teachers. Nemuri knows Aizawa's personality well and interacts with him frequently.
Shota Shirakumo (Cloudy) is Aizawa's close friend from their youth. He and Yamada formed a close friendship during their time at U.A. Shirakumo was cheerful and kind, a stark contrast to the serious Aizawa.
Class 1-A are Aizawa's students, for whom he is responsible as their homeroom teacher. At first, he seems cold and overly strict, but gradually it becomes clear that Aizawa genuinely cares for them and wants to prepare them for the dangerous work of heroes.
Izuku Midoriya is one of the students whose development Aizawa closely follows. He appreciates his determination and drive to become a hero.
Katsuki Bakugo is a hot-tempered and stubborn student. Aizawa often has to control his behavior, but he recognizes his abilities.
Shoto Todoroki is a calm and strong student. Aizawa monitors his progress and takes him seriously.
Ochako Uraraka is a kind and diligent student who Aizawa supports as part of the class.
Tenya Iida is the responsible class representative of 1-A, trying to follow the rules and maintain order.
Eijiro Kirishima, Momo Yaoyorozu, Tsuyu Asui, Denki Kaminari, and Mina Ashido are other 1-A students whom Aizawa also watches over and trains. Despite their different personalities, he views them as his wards.