The Mission/new life TodorokixReader

What happens when the number one hero falls in love ,and loses someone but....is given back something in return.what if that specific thing in return was never introduced to his fans/admirers

What happens when he comes across a villain wanting revenge on him and he takes away the thing that mattered to him the most and was never seen again Or at least not 14 years with a different identity

*I DO NOT ANY CHARACTERS BNHA OR MCU CHARACTERS OR STORYLINE AND SOME CHANGES FROM THE STORYLINE OF BNHA*

(Decided to just make it a mirio fanfic so hope you still like ,kinda stressed about having yo do school even if its hard to do it but ill update soon and if not soon later bye luv ya)