Yoichi

Role: The first user of One for All, a symbol of resilience against villains.

Connections: All For One's younger brother, who forcibly gave him a power accumulation quirk, unaware that Yoichi already had a weak transmission quirk.

Character: He had a kind heart, cared about people and did not support his brother’s actions.

Quirk: One for All (originally the ability to transfer power, later combined with the accumulation quirk).

Appearance: A young man similar in appearance to his older brother, but with softer features. Snow-white hair. Eyes as blue as a clear sky. Often disheveled. Most often dressed in a white T-shirt, dark green pants, and sneakers.

Meaning: His herald continues to live within One for All, supporting Izuku Midoriya and the other successors.

A man with a sickly, emaciated appearance and a weak constitution. He has white, tousled hair, similar to Tomura Shigaraki's. Despite his frail frame, Yoichi was recognized as possessing a strong sense of justice. This sense directly conflicted with his older brother's ambition and majestic magic. Quirk: Yoichi possessed a powerful ability called "Disintegration." Aside from his strained relationship with his brother, Yoichi is a very friendly and loving man. He has good relationships with all of his successors.