The Attack of the Slime

Izuku Midoriya was quirkless his whole life but he was never useless. And maybe he wasn't Quirkless too... what if Izuku had a quirk his whole life and just needed more energy to power it... energy he recieves from a mysterious blade. A blade he gains when saving a ponytailed girl.
Momo Yaoyorozu, had a quirk her whole life, got locked in her house so her parents could exploit it, she never knew what love and care was her entire life... until a pair of emerald eyes walks into it.
Watch as this pair learns to forgive or move past their problems... together.