【MMD】跳Follow the Leader时下半身完全暴露

I'm still not quite sure how to set up WorkingFloor, so the stage reflected in the mirror looks a little strange?please bear with me. Due to file size constraints, the resolution is 720p this time. USE↓ model:quappa el 伐谷るこに stage:铃木.zip szk_stage08 motion:NatsumiSan Follow the Leader effects:AutoLuminous,ray-mmd,DOF,WorkingFloorX_v006,KiraKira_v2_32_64_MMM