The Heroic Shield

Izuku Midoriya had managed to defeat Shigaraki and destroyed All For One permanently but at the cost of his own life and as his life flashes before his eyes, He suddenly remembered a book he read a long time ago but that book wasn't really his main focus at the time. Then all of a sudden he appeared in an unknown room with 3 other people as he then heard

"It's a success! Please save our kingdom!"

(I own nothing but the story)