Alright, since it seems some people are getting a bit lost, here's Tradedaemon's attempt at a synopsis! Oh, and don't worry if you've been confused, it's ok.

My guess is that the Edo one we haven't heard about or seen. The Meiji one was the second half of the first chapter with the samurai if you forgot. I'm assuming that that hut in the first part of chapter 1 are different from the second half, even if they look the same, since later, the hut in first part of chapter 1 gets burned. Also, the start of the story must have been before the Osaka incident because it says they escaped again. 

Chapter 2 is before the second half of chapter 1 since 2 - 5 leads into that about how Kurou got his head chopped off.

The Tokyo raid one came after all of this, which is chapter 6. The one after the great disaster came after that which begins at chapter 7. That little sequence in chapter 8 where he's dreaming is just to lead into the next part of him hunting for Kuromitsu 120 years later. 

From this point on, it's going to be pretty linear while dipping into the past to fill in this enormous gap of what's been happening. I don't think it's going to do any big time jumps for a couple of volumes from flipping through it, so it should be easier to follow for some of you. Right now, Kurou is searching for Kuromitsu to make her fill in all the gaps in his memory and then probably to kill her or something, though im not completely sure what his whole plan is once he sees her. 

Hope this helped.
