Tour of Secret - kiss o' kill

[Bashumaru]

I have a question about this performance, was the masked Ayu a body double? I'm not sure if it was but it seems pretty impossible for her to get up on the cross so fast. Sorry if this was answered already or if it was explained in the documentary because I'm in the middle of the kiss o' kill performance on the DVD right now so if it's explained, I'll request for this to be sent to the trash can.