Although Wangshu did not fully understand Luohou's intentions, she knew she would understand the reason when the time came. Right now, however, Wangshu was somewhat worried about Nuwa.
Mount Sumeru was currently under the control of Taishang, who had fallen into the Tribulation of Heartlessness. Since Nuwa intended to achieve sainthood before him, Taishang would undoubtedly try to obstruct her in every possible way.
Given this, Wangshu couldn't help but worry: if Taishang refused to hand over the Three-Light Divine Water, what could Nuwa possibly do?
Chapter 406