Chapter.1 (Back to the past)

Nezu asked Izuku if he could help Mei Hatsume with testing one of inventions only to be send 45 years back in time by her invention.

he ends up landing in the middel of a trainingfield of U.A and as he looks around he sees three people that he knows, the only thing is that they are almost 5 decades younger and that one of them is alive.
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Also i believe that Nezu is an immortal ratdevil.
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Also shigaraki will not be Nana's grandson, because that will not work.
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read to find out what happens next.
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*Not my characters, it's from bnha*
*and the art i will use in my story,s is not mine*