Vision Cryo Constellation Feles The incredibly popular bartender of the Cat's Tail tavern, the rising star of Mondstadt's wine industry, and the greatest challenger to its traditional powerhouses. A feisty feline young lady from Springvale, any drink mixed by Diona's hand tastes delicious beyond belief. Her goal is to destroy Mondstadt's wine industry. Her cat-like tail and ears are in fact not prop or accessories but an actual tail and ears from her Katzlein's lineage.