User blog:Oppaichan/Evil Momo and Brave Nana?

The personality sections of Momo and Nana talk about their angry selves. These sections have been written a long time ago, and some people have added to those sections, but one thing that stayed was the part about what they are like when they're fighting, or when they're angry. But there are some parts of it that I don't understand, especially Nana's personality section.

Where did the names "Evil Momo" and "Brave Nana" come from? I don't remember seeing them in the manga. Were they just names thought up by some reader? It was also said that Nana risked her life to save Haruna and her dog, but when did this happen? And when did Haruna and Mea mention that Nana had tremendous amount of bloodlust?