TJ_Watkins
Someone asked this earlier, but their comment got deleted when I moved this chapter to volume two so I'll answer it again. The Shiro and Kuro mentioned here is a reference to the novel "Nanomancer Reborn - I've Become A Snow Girl" by Reili here on Webnovel. If you like stories with strong independent female MCs then you should check it out, it's one of my favorites.