The Seven Vision is a combination of Wandavision and the Seven Demigods of The Percy Jackson ,Heroes of Olympus Universe. Each Chapter will Act like an episode and the characters I can tell you about are Hazel Levesque, Annabeth Chase, Percy Jackson, and Frank Zhang. Now I hope like WandaVision and PJO/HoO the theories will be vast between these chapters/episodes and will have several surprises and possibly Crossovers :D.