It's a polyamorous fic between Will, Nico, and Jason when they are given a quest to save the underworld. Orpheus had escaped Hades castle and is creating a army to take him down so he can be reunited with his love, along the way the boys have to fight to save Hades and realize their feelings for one another.
so yea go read it It’s completed! No TOA or TSATS spoilers btw