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Also, exactly what aspect of Nana does the blue Nana represent? My guess, blue Nana is her good side! Think, she's the only one who could beat Jamanana, knew how to calm down Nanarin, and because she's Nana's good side, she's not very assertive, hence why the others are able to push her around. Also, this would explain why she seems to be on a different wavelength than the others, who have more rounded personalities. The reason she is so much like the regular Nana is that Nana is a good person at heart.
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