Star Wars: Grime of the Undercity was a novella about the life of a Tu named Xi Y'lars Tu who lived on Coruscant. It was canceled on 28th July 2019 yet may be finished some time in the future.
This story was originally called The rotten slime of the Undercity but later changed to Star Wars: Grime of the Undercity, several changes to Xi Y'lars Tu's original backstory were changed and Xi Y'lars Tu was changed to Xu Y'lars Tu.