Responses
To me this looks like reincarnation from the start, and I think it was Akatsuki who "heard" Ogami calling him by his past name, in past memories ╮(￣ᴗ￣)╭
Now we only have to wait to Akatsuki to get us the real name of Ogami.
Nope
Did he whisper his previous lover's name at the end? I do understand he's caught up in his past but it made me sorry for Akatsuki :(