furina and focalors have the same voice actor, amber lee conners. it’s utterly amazing how amber can voice two different characters and successfully still manage to make them sound distinct and different but still similar
Ima ruin yalls mentality even more, Focalors was BEHEADED, the giant sword was a reference to a guillotine blade, and Furina's hat falling to the floor is a reference to what happend to Focalors. Btw, if you rewatch the sequence, if you pay attention, you'll notice in the last part of the dance. Focalors tilts her head to the side, slightly exposing her neck.. you can figure out the rest..
I think is because she knew if would happen from already a lot of time before it happened and knew she could do anything to stop it do smiling was the only way to confort her own self. Also she said even tho it didn't look like it, she was scared