Swan Dive Summary The Slime Villain Incident, and the events leading up to it happen one year earlier. Izuku, broken and lost in the face of All Might's words, decides to take Kacchan's advice. But a familiar Underground Hero won't let a young life end so quickly. How will a simple right-place-right time scenario change things? OR: Aizawa Shouta saves the life of Midoriya Izuku and finds himself with a new apprentice and surrounded by a quickly growing family circle. What has he gotten himself into? Heavy Dadzawa and Dadmic. Auntie Nemuri and eventual redeemed Bakugo.

When the world ends, their only hope is to send one Quirkless man back in time. Back in his 14-year-old body, will Midoriya Izuku be able to save the world that shunned him all his life? And will he finally be able to become a hero this go around? Good thing he had time as a vigilante to practice.

When he was a kid, Midoriya Izuku was hit by an unknown Quirk. He was found a few days later, unharmed. He was gone for just a few days to the world, and he never told anyone where he'd been. Who would believe that he'd been sent back in time several hundred years to the Pre-Quirk Era? That he'd been adopted by a pair of circus performers who gave him the name Richard Grayson? That he, Quirkless Midoriya Izuku, had become Robin, the Boy Wonder, famed partner to the Old Hero, Batman. Yeah. Nobody was going to believe that. At least he could become a LEGAL hero, now.

I was watching episode 8 (where Izuku admits to Bakugo that his Quirk isn't really his), and I thought to myself, "What if Aizawa overheard that conversation?" So here we are. Just a little oneshot on his thoughts and reaction, but if you want more, I might consider it. ^^