I'm not sure if they're going to release Nana's original form's back story separately or in future chapters but for those who want spoilers here's what's been released about her so far: She is a friend of another girl her receieved a stick due to being sexually assualted by her teacher. The friend murders the teacher similar to how Aya did as she learned what the stick did. 'Nana' at the time loved the girl and witness the murder and truth and took the stick and the responsibility of being a magical girl. She used to the stick to gather money for the abused girl as the abused turned out to be pregnant. However shortly afterward the abused girl got a boyfriend and appears to have her mind broken due to the abuse slowly making 'Nana' regret what she did. As of this post there are only 4 chapters of this story released.
she commits suicide in the recent chapter when someone released those photos the teacher took right? sad :(
This manga is so rough ;.;
First of all I love the longer pages, shorter page count. Second I like both guys to the point where I wish they had their own separate stories.