Izuku is living his dream; part of the hero course in UA, taught by his idol, crushing on the socially awkward and emotionally constipated but sweet classmate. However, there is a huge secret in his past he doesn't know about, a secret he ends up running into, literally.
AFO is gone, but he left something behind. Something that doesn't really know what he wants from his existence. Then he finds out he still has family, but this family is seemingly on the wrong side.
A young hero with unsolved issues, finding solace in the company of the most (potentially) dangerous villain in Japan. Touya finds himself asking hard questions about his path in life, where he belongs.
So this is BNHA fanfiction. The scenario is- what if AFO had already passed his powers to Tomura and died before Izuku even enters UA? AND what if Izuku and Tomura are connected by more than their inherited quirks?
I really like this one. I don't want to spoil it, but I really think the multiverse that the writer has created/ expanded on from cannon is excellent.