After the Quirkless Izuku Midoriya meets All Might, he becomes the successor to All Might's Quirk, One For All, which means he must eventually go up against All For One and Tomura Shigaraki.
My brother is frail.
.أخي هشّ
Mon petit frère est fragile.
Il mio caro fratellino è cagionevole di salute.
O corpo do meu irmão é frágil.
Мой брат такой хрупкий.