Deku The Next #1 Hero (On Hold)

(This Story is on hold for a bit but you check out my other story
This is a story about Deku being an adult along with class 1-A and 1-B being adults graduating from UA and their all in their mind 20s. Deku messes with the timeline to save the multiverse back when he was a 1st year. He is gonna face powerful villains from his past and future. He is also gonna have to face against the strongest villain to ever exist. Is Deku gonna defeat him? How will Deku defeat him? How did Deku time travel? Who is the villain Deku has to defeat to keep the world save? All will be reviled in the chapters