I've seen her before in different kata. Amazing. It is not mere copying of mechanical steps. Her body position is great, and many other things. She is not a mere copy cat, she is actually doing the kata, and kankudai is a difficult kata. So, clearly a child prodigy, a product of talent and a dedicated teacher.
Rika Usami, an adult yes, is another one of those amazing female karate experts:
That's not fake kata as we so often in jûdô today.