When my daughter was small, she used to watch martial-arts movies with me. So I made up bedtime stories for her with characters like the characters in those movies. Chin Lu-Mao and Liang Ni-Wa are essentially taken from those old bedtime stories. Because an Indonesian woman used to be active on this forum, I was able to get information from her about what Indonesia was like in the time of my story, which enabled me to describe my Chinese characters going there.