After Munan filled her in, Xinghe had roughly figured out the bulk of his problem.
"I can try," she said softly.
Munan was overjoyed. "Big sister Xia, if you can help us overcome this problem, name any reward that you want, and if possible, I will fulfill it!"
Xinghe shook her head. "By helping you, I'm helping myself, so I don't need any reward."
"Regardless, I'm forever in your debt."
"I've not done anything yet; you can save your appreciation for later."
"Okay!" Munan didn't waste time, he told her directly, "Big sister Xia, getting you into the military camp will be a bit troublesome. We have to go through some procedures first. Temporarily, you'll be joining my team as a special civilian agent."
"I don't mind either way."
Just like that, under Munan's arrangement, Xinghe entered the military as his platoon's special civilian agent.