Kaguya's current decline in strength is entirely due to insufficient energy within her body. In her present condition, if she were to encounter the Tailed Beast without prior briefing, it would be like a ruffian running into a young maiden—she would probably pounce on them immediately.
When she first heard the term Tailed Beast, Kaguya did not react right away. She was still wondering why she was not allowed to touch the Tailed Beast.
But as she listened further, she spotted the problem, and with a mix of confusion and a sense of natural entitlement, she said, "Since the Tailed Beasts were all separated from the God Tree, they belong to me. Why shouldn't I reclaim them?"
Chapter 205