Chishizu? Isn't her name supposed to be pronounced as "China"? It's even in the description of the manga, and on the description of the manga at the offical raw page, it even has "ちな" next to her name in kanji.
Not only that, but from what I can tell, the author's name should be "Kotoki Soyo", not "Komatohime Soyo". The more I read, the more I feel like this is set up by an MTL group.