Zyflair

Lost in Longing: This part chronicles Jay's backstory and introduces his personal conflict as well as his backstory and the characters who he's going to be involved with frequently throughout the rest of the story. Also, this section is supposed to be tied in with how Arachana the goddess of desire tries to control Jay by manipulating his bad memories of his loss against his sister Meg.
Found In Fury: At this point in the story, Jay has already encountered the main gods of Dark Nostalgia as well as learned part of their plot to take vengence on Arceus for sealing them away within their own realm of Beyi Quofyi. However, during this section, Jay becomes more and more spiteful of his sister who continues to outdo him every chance she gets since she gets involved with his quest to stop the gods of dark memories (hence making this somewhat tied into how my fakemon Vaspudem symbolizes hatred).
Tried by Terror: Terrified of what he's become, Jay returns to places he'd been avoiding since his loss to his sister, hoping to find the truth of why the gods of Dark Nostalgia keep trying to control him. But doing so means facing off with the most powerful of the three dieties (Lord Otulp), and possibly losing his soul to the three demons altogether.
The Lost Goddess:After Otulp finally locates and destroys Arceus, he turns Palkia and Dialga to stone and consume their spirits assuring that neither can rise against him ever again. In the meantime, Jay tries to locate the other entity who had been infesting his dreams and apparently possessing his physical body for years without him even knowing it. Already knowing about the creature's twin, he wants to hear the final word of what has been occuring since the beginning of the Dark Nostalgia crusade from the one who supposedly started it all (Beyi-geyi).

Part of why I think each section may be shorter than the first one is because that's supposedly how fast all of the events play out after Chapter Six, Part Two.