fic where there is a supernatural threat to New York City and the Avengers show up to handle it but when they get there the Ghostbusters are already dusting off their hands and hosing off the slime

A truly underutilized Huaisang plot is him killing time during his ten years of revenge plotting by being a minor thorn in Jin Guangyao’s side. He has had years of training in the art of being an obnoxious younger sibling and now he’s going to make this one man’s life hell.