"But you will have full control over these net assets, she will not have any management rights... until the accident you mentioned happens, then the supplementary clause will be invalidated. The benefit of doing this is that it can eliminate your worries, as well as ours."
If Brother Baihao had no accidents, this net asset belong to Chenxing, but she has no management rights and does not know that she possesses this money. In this way, she will not harbor any ideas, which would eliminate their apprehensions.
If something really happened to Brother Baihao, within 24 hours she would be notified about the assets in her name. They would then be her assets to manage in the future, ensuring her a worry-free life and eliminating Brother Baihao's worries.
A truly dual advantage.