Soul Eater x My Hero Academia crossover.
After unlocking Brew for Lord Death, Eibon's link to the Key was broken and his soul set free. He was then reincarnated into the MHA universe as a quirkless boy named Izuku Midoriya, who had just lost his parents to a villian attack. Seeing this as a chance to make amends for his misdeeds, the reincarnated sorcerer chose to creating Magic Tools in secret and passing them to those he deemed worthy of being heroes. He had been conducting his research since the age of 6, and had been living in seclusion ever since. Until at the age of 17, he had come across a very energetic and enthusiastic young pink haired girl who was aiming for the Support Course of the number one Hero school in Japan: UA. The two quickly got along and Izuku began developing an attachment to the girl. What will the future have in store for the two inventors?
(A/N: this one is a bit different from my other ideas, but I thought I might give it a shot.)