Well that's pretty creepy. There's gotta be significance in that shogi piece changing. What's it say?
Seems to be a knight that turns into... a promoted knight. I don't know much about shogi to be honest, but Wikipedia says that pieces usually have their promoted version written on the opposite side, so she's just... flipping the piece around. As you say, probably some symbolism involved, but heck if I know what it is.
EDIT: Ninja'd
That human died pretty easy by his own hand, but...How about you, I wonder?