This was such a depressing manga that I actually had to stop after certain times and do something else.
The ending was a bit to happy ever after, but after 106 chapters of depressing stuff, I honestly didn't mind it. I was actually glad that Bandou is still alive. He was a jerk at first but he grew on me and he doesn't seem like the type to die so easily.
As for the reincarnation of Lucy and Nyu, I hadn't thought about that at first, but now it kind of made sense.
This was a pretty good manga, but I doubt I would ever read it again.