Mirio Toogata

Age: 18

Birthday: July 15

Height: 181 cm (5'11½")

Affiliation: U.A.

Quirk: Permeation

Mirio is a third-year student at Yuuei High and is part of The Big Three.

[Spoiler] Before Izuku Midoriya, Mirio was one of the top candidates for All Might's successor and inheritor of One For All. [/Spoiler]

[Spoiler] Whilst fighting against Overhaul, Mirio sacrifices his quirk in order to protect Eri by jumping in front of her, getting shot by the Quirk-Destroying Drug bullet that Shie Hassaikai's 'Eight Bullets' member Shin Nemoto shot into Eri's direction. [/Spoiler]

(Source: Boku no Hero Academia Wiki)