In fact, Fang Zhou misunderstood Han Li. It wasn't that she didn't want to use the treasure; she simply couldn't.
The treasure used to trap the eldest sister was a Treasure Artifact named the Mountain and River Map, capable of transforming into terrain features such as mountains and rivers, and so on.
It is said that if a cultivator above the Yin Yang Realm were to use it, they could even create real mountains and rivers out of thin air that would not disappear.
But with Han Li's current Qi Refining Realm capabilities, she could only alter the terrain on a small scale, and it could be used only once. If she tried to force it, it would only lead to failure.
Therefore, she had no choice but to put the treasure aside and roll up her sleeves to help out.
