The Night of Valentia Seirei Tsukai no Blade Dance : Season 1 Episode 11

The whole town is abuzz with the Festival of Valentia, and Kamito and Ellis are doing their duty as knights to keep everyone safe. A mysterious girl approaches Claire when she's feeling down about how weak she is. Claire almost loses after being controlled with magic, but is saved due to help. However, two others have already fallen to the mysterious girl's tricks...