Erica didn't waste anytime. If she had any chance at trying to take this thing down, she needed to limit its movement. In a split second decision, she activated Nōkō Utsu and aimed the attack at the jointed, exposed ankle of the beast. She was playing Russian Roulette now. 

If the attack hit, her plan was to grab onto the Kobold's sash-like covering that served as some protection. If she was lucky, it would try to kick her off in frustration, which would send her into the air directly above it.