Hai Daxiu's surname isn't really Hai; it's just her nickname.
In Sea Corn Base, with its many training camps grouped into a Training Camp Association, Hai Daxiu is the association's president and the actual ruler of Sea Corn Base.
Only Hai Daxiu had the authority to mobilize the Ascenders of Sea Corn Base, and Instructor Mu had some ties with her, so persuading Hai Daxiu to step in wasn't difficult.
After all, this was Sea Corn Base. The Wan Family's members acting recklessly, killing at will – as the ruler of Sea Corn Base, Hai Daxiu couldn't just stand by and let this happen.
After Instructor Mu met with Hai Daxiu, things went quite smoothly. Hai Daxiu had long been aware of Wan Guotao's situation and had been intending to see him.
The reason she had waited until now without visiting was that she was waiting for Instructor Mu to come to her.
"I can help you, but I have a condition," Hai Daxiu said to Instructor Mu with a smile.