so..in Aether’s original world he has Christmas/Yule and he mentioned this like a few months ago to you so you got everybody together in Mondstadt to make a holiday for the 25th of December and you went with Bardsmas. So you got Venti, and the others including the shop keepers to go festive with like string lights with lyres, festive drinks and food at Dawn Winery, Angel’s Share, and Good Hunter, and you did this so you could made Aether happy. You saw him looking at Mondstadt in awe. “It looks like Christmas..” Aether murmured, Venti looked proud of himself and the others were wrapping gifts for later.