I'm searching for an anime that I watched... a long time ago, in France. The only thing that stays in my head is the possibility of the number 9 being in the title.
I remember some scenes in the anime :
- A teen/child in the snow who (I think) is find by a group of other teens that live in a floating city. They take him with them.
- He (or her but I think it's he) wakes up and get to know every person living here but something is wrong with these teens, causing some of them to try to kill each other.
From here I'm not sure of myself and it could mislead you.
- They may be in conflict with people outside this floating city.
- They broke in two groups after all the problems and some of them leave the floating city.
I can remember one girl from the anime. She has long brown hair and seem serious and mature.