Izuku Midoriya

Izuku is bisexual. Izuku is generally characterized as a nervous, honest, and cheerful boy. Despite being born Quirkless, Izuku held onto his lifelong dream of becoming a hero deeply inspired by the No. 1 Hero: All Might. While commonly showing his nervousness and sometimes meek attitude, Izuku commonly displays his heroic spirit with his incredible determination and selfless nature, as shown when he rushed in to save Katsuki and Ochaco despite the danger posed to himself as well. Izuku becomes elated when having the opportunity to gain a Quirk, and attend U.A. High, but also dutifully carries the goal of becoming All Might's successor to carry the One For All Quirk.

A big fan of heroes, Izuku has a wide knowledge of many Pro Heroes, especially All Might with him knowing all of the No. 1's achievements and feats, no matter how small or trivial. Having admired All Might, he is also an avid collector of his merchandise as seen in his dormitory room. Izuku is also very intelligent and informative in terms of the Quirks and abilities of others, often inventing methods, strategies and ways to improve them. This results in Izuku having a habit to drone on and mumbling whenever he focuses on something, a trait that usually tends to unnerve his peers somewhat.

Izuku can also be defined as a dynamic character. While at first, he started off as insecure, tearful, and unconfident in his own powers, abilities and handling of his Quirk, he soon develops into a more focused, diligent and determined character, with his sights set on becoming a great hero. His time at U.A. High School and experiences, alongside serving as All Might's successor for One For All, have served greatly in his growth as both a character and a hero-in-training.

What truly defines Izuku, is his ultimately heroic spirit and willingness to help and save anyone, never hesitating to do so even if he lacks the strength or abilities. He was immediately suspicious and wary after witnessing Eri's fear and the bandages around her arms, after failing to save her from Overhaul the incident remained on his mind and he was later horrified upon learning the truth of her mistreatment. This, however, while indeed weighing on his conscience, has also further fueled his desire to save her alongside his comrade Mirio Togata.

He has also been able to help others with their personal conflicts and issues, having turned several characters who were previously antagonistic towards him into gaining strong respect and even a sense of admiration for him. Along with his strong desire to save others is his determination to win fights, something that he took from his childhood friend, Katsuki Bakugo. Izuku actually goes so far as to emulate Katsuki's behavior during battle because his idea of victory is so engrained with the image of Katsuki in his mind, though he admits he doesn't like this side of him very much.

Izuku also shows a sympathetic and merciful attitude towards villains he encounters. While he acknowledges that there are villains too evil and merciless to deserve his sympathy, he wonders about the circumstances that drove them into villainy in the first place. Due to this, he often wants to save villains that need it, no matter what their crimes, such as offering the Gentle Criminal and his partner, La Brava, to a better path in life.

He even believed that he can save his arch-enemy Tomura Shigaraki from All For One's influence despite being the ultimate evil, once he saw what remained of Tenko Shimura's humanity and innocence after Tomura tried to invade his consciousness. While the other users believed that Tomura was beyond saving and the destruction he will cause will be irreversible, Izuku believes that One For All should be used to save rather than kill, which All Might taught him, as he still wants to save Tomura no matter what.

He also tried to reason with Muscular if there was any path for him to take and why he committed all these murders, same with Lady Nagant, a fallen Pro Hero due to the dark side of Hero Society until he had gotten her to open her eyes, and even with Kai Chisaki of all people, kept a promise he made from Nagant when he genuinely wanted to apologize to his boss but in conditions, if he would ever feel the same way to Eri after what he had done to her.

After he woke up from his coma, Izuku was discharged from the hospital afterwards. Then later on, in April, he wrote letters to each of his classmates in 1-A, including Ochaco, revealing that the truth behind his Quirk was a power passed down to him by All Might, that All For One and Tomura Shigaraki are now chasing after him because of it, and that he left U.A. High. By the start of what would be his second year in April, Izuku left U.A. High for that matter to keep his classmates safe.