acctually what is so great about nana is how real it is also it is so full of emotions it tatch every ones heart I think the main issue in nana is th conflict between friendship and love
the friendship between nana and atchiko shows how strong the bonds of friendship can be although they were from complitly different worlds also between nana and nobu
the love between nana and ren that was so strong
the turment of atchiko between nobu and yankumi it more like between true love and the wellbeeing
atchiko was so worried about her baby who is growing inside her and this is called mother hood
and of course the hard work of nana and her groupe shows how every one should work to achive his dream
also the self pride of nana
so this anime deal with friendship ; love ; motherhood ; welbeing ; the pursute of happiness by achiving ones dream ; ........
isn't it the greatest anime ?