Omg, I Can't accept ren's dead, but It seems a fine episode very realistic, but I don't like the drama about the death in birthday's nana, It seems like a soap opera.
After all, I think, Nana will want only to see the face of hatchi, she is the only one who is her "familiar" by the conecction in their friendship (like sisters?) well.
If this chapter would have a ending (anime), it will be (i think) 78 (first part): the song "Winter Sleep"
[It keeps coming back to me, I remember this pain
It spreads across my eyes
Everything is dull...]
And the 78 (second part): the song: "Kuroi Namida"
[I can't count the nights
When I've hoped tomorrow won't come...
I've lost my dreams and my love
Lashed by the rain
I'm crying , crying crying...]
Well I think that those songs fit at all with the chapters.
I hope that NANA and Hatchi will meet because they will need each other.
Great episode.
that's all.