This should be my favorite manga of all time. It features a pair of badass female protagonists (a personal favorite character type of mine) and keeps you guessing whether or not Nana is actually as dumb as she seems. Ringo is an enjoyable straight (wo)man to Nana's weirdness, and I found them super enjoyable. The artwork and setting are both fantastic, and it had the makings of becoming a One Piece tailor-made for people who, like me, can't get into One Piece for one reason or another. Then it ended. The ending ruined the whole experience for me. It was rushed, went nowhere, left plotthreads hanging, and destroyed what should've been a fun, quirky, and cute series.

Again, I liked almost everything else. Nana and Ringo in particular were excellent characters, and Hoshi was shaping up to be a fun addition. The villains had cool powers, the world struck me as a sort of ecchi One Piece scenario, and everything about it was poised to succeed.

Overall, I can't hate on this series too much. I'm glad I read it, and Nana has gone on to be one of my favorite characters ever. But... I can't in good conscious rate it above a 5 with how it ended.