Medusa but with an actual plot

I don't like the book and there's a lot of things I wish I changed about it, so have this.

Medusa ( Quirk Au BNHA )

In which Izuku develops a quirk almost identical to his favorite myth, becomes self loathing and dismissive and Katsuki just wants to fight him when he doesn't want to P self indulgent Might have future KatsuDeku or KiriDeku Already has KatsuDeku rip Light Dekubowl but the main ship is KatsuDeku