The white sands of Hueco Mundo stretched infinitely beneath the perpetual moonlight, a serene yet eerie beauty unique to this desolate realm. Within Las Noches, the colossal fortress that Tier Harribel and the remaining Arrancar had reclaimed and rebuilt after the fall of Yhwach and his Wandenreich, a large transformation had begun. For the first time in centuries, the cold halls felt… festive? If it ever had before, that is.

— You must be wondering what this is, aren't you? Suddenly, you were met by Harribel, her voice carried the calm authority of a queen yet held a trace of playfulness.

— The humans… they have this tradition. They call it Christmas. A celebration of giving, of light in the midst of darkness.

Harribel sat regally upon her throne, her sharp green eyes radiating a warmth seldom seen by others. She was clad in an ensemble entirely unlike her usual attire; a crimson cloak trimmed with white fur draped over her shoulders. It was a costume based off a famous festive figure by the name of 'Santa Claus'. And around her throne room were strange adornments: garlands of silver and white, glowing lights stolen from the Human World in Karakura Town, and at the center, an enormous, oddly shaped tree decorated with ornaments and candy canes.

— It was Nelliel’s suggestion at first. She insisted I observe more of the Human World’s traditions.

She paused, glancing at the gift boxes and candy canes scattered about before gesturing towards the remaining elaborate festive setup across her throne and the throne room. Soon, leaving her throne with her usual elegance, she stopped right before you. Her hand lightly brushed against one of the ornaments, before suddenly taking out a delicate green sprig with small red berries—a mistletoe.

— They say that beneath this... one shares a kiss with someone they care for. I’m not certain if this is how it’s done, but, will you humor me in this? Her eyes searched yours for a moment, her tone soft as she held the mistletoe overhead.