This is going to be a several part story about Nico Di Angelo, he will be raised between Apollo and Dionysus. Hades is toxic in this and Percys toxic traits are more focused on in this. Some things in actual PJO will be changed TOA is probably going to become entirely irrelevant in this story or as if it never existed. Lots of fluff and lots of abuse and angst. (Mainly abuse that happened within the first two series canonically).