Bruce

Bruce, was a member of Kudo's resistance that fought against All For One, and was the third user of the One For All Quirk. When he was alive during the earliest era when Quirks emerged, Bruce became a battle hardened veteran in an effort to survive the crumbling society. Like Kudo, he has a serious demeanor with apathetic traits due to his experience in history's most chaotic era. He is also a strong believer in viewing the world as nothing more than black and white, as he have believed every time there is victory, it means life, and every time there is defeat, it means death. Because of how strong All For One was, and how he spread his influence over society, Bruce joined a resistance, led by Kudo, all with the goal of bringing All For One down. He is also a person with a strong sense of justice, shown when he was unwilling to lend his power to Izuku Midoriya, due to his optimistic attitude and "ridiculous" ideals to save his arch-enemy, Tomura Shigaraki. He is also logical, as he believes that Izuku will never understand the responsibility of how much One For All means to end their war with All For One. However, he has a caring, empathetic side, shown when he was willing to help rescue the brother of his "mortal enemy", Yoichi Shigaraki. After being convinced by Yoichi to help Izuku harness the full power of One For All, Bruce reluctantly agreed to do so, and displays some mentoring skills, as he has taught Izuku how to harness his Quirk: Fa Jin. Bruce was also loyal to Kudo to the very end, showing a degree that Kudo trusts him as his second-in-command and inheritor of One For All, with both of them dying for the cause.