The Two That Fell

This book is liable to be very short chapter-wise, but the parts are fairly long.
(Tower of Sweet Chaos spoilers beyond this point!)
You know the story of White Lily and Pure Vanilla.
How she was too curious for her own good and fell into the Ultimate Dough.
But what if Pure Vanilla went down with her?
Spoilers for the Tower of Sweet Chaos and World Exploration worlds 1-10(may increase if needed)
Featuring the following headcanons:
The light that Soul Jams emit changes brightness with its wielder's emotions- a pained Ancient's Soul Jam might flicker erratically, while a happy Soul Jam wielder results in slow undulating waves of light.
Each kingdom has its own distinct language, with specific areas carrying different accents and dialects. Espresso Cookie, for example, would have at least a bit of a Coffee accent on his Cacaoian, while Caramel Arrow Cookie would speak the Citadel dialect. The language of the Crème Republic is its own separate language but is close enough to Vanillian that two speakers of the languages can manage to understand each other.