Nothing much was happening on Viola's side, so Li Chengxi was now paying more attention to Yang Yiyi, who was even having trouble with the simple act of eating. The sudden surge in physical strength made it difficult for the girl to adapt.
After an incident where she used too much force while catching fish in the pool, making it look like it had exploded, and then destroying quite a few innocent peach trees on her way back, Yang Yiyi had returned to the cave.
As a bonus, when she pushed aside the vines at the entrance, she accidentally smashed a chunk out of the rock wall. When a person moves their limbs, they don't consciously think about how much force to use. It's a completely instinctual reaction, coordinated by the cerebellum.
For instance, when you pick up a glass of water, you don't first consider which muscle or tendon to activate. The thought of picking up the glass forms in your mind, and you naturally do it.