What Are The Top Plot Themes In All Might X Deku Fanfiction?

Found family dominates, but there's a weirdly persistent strand of time-loop fics where one of them keeps reliving a bad day until they get it right. Also, post-war recovery stuff where they're both broken in different ways and have to rebuild together. The physical contrast is a theme itself—giant, skeletal man and small, muscular kid—so many fics use that imagery for hugs, carrying, just the visual of them side by side.

You get the classics: injured Deku, sickfic, training gone wrong, All Might stepping in as protector. But the themes that stick with me aren't the events, it's the specific emotional tone. A lot of writers zero in on All Might's loneliness after retirement and how Midoriya unintentionally fills that void, not as a replacement for a son maybe, but as a reason to keep living a quiet life. The man spent decades being the world's pillar; having a single kid who needs him as Toshinori Yagi, not as the Symbol, becomes his entire world. I've read a few that explore Midoriya's hero-worship crumbling into seeing the man's flaws and loving him more for it, which is a way more interesting dynamic than permanent admiration. Sometimes they fight! All Might can be overbearing, Midoriya can be reckless, they clash. It's good conflict because they have to come back to this unshakeable foundation of mutual respect.

The most common thread I see is Dadmight, obviously. Mentor All Might struggling with the reality that he's basically given this scrawny kid a death sentence with One For All, then having to deal with the emotional fallout of watching that kid nearly destroy himself over and over. It's not just fluffy found family stuff either—some of the best fics dig into the guilt. Like, All Might retired, he's supposed to be done, but now he's having nightmares about young Midoriya ending up just like him, hollowed out and alone.

A surprising amount explore time travel or dimension travel. Midoriya ends up in a world where All Might died earlier, or All Might wakes up decades in the past with all his future knowledge and has to prevent his own mistakes. Those get weirdly philosophical about legacy and inevitability. There's also a subset that's pure hurt/comfort, where All Might finds Midoriya after a villain attack or a bad day at school and just... sits with him. No grand speeches, just quiet presence. It hits different than other pairings because the power imbalance is so baked into their canon relationship—exploring the shift from symbol to person feels huge.

Occasionally you'll find darker AUs where All Might is the villain, or Midoriya turns villain and All Might has to face him. They're rare but memorable when done right, usually focusing on the tragedy of the disciple surpassing the master in the worst way possible.

Everybody talks about the dad vibes, which, fair, but I'm way more into the fics that treat One For All like a haunted legacy. The vestiges meddling, All Might and Deku having shared dreams or memories that aren't theirs, that sort of mystic bond stuff. It adds a layer the show barely touches. Also, post-canon fics where All Might is aging and fading, and Deku is the one taking care of him, reversing the roles—those wreck me every time.