Responses
as for your first question...
'The world may never know'
I've noticed that more Japanese authors have been alluding to incest in their stories recently and most of them frustratingly have these incomplete feeling to their endings. ┑(￣Д ￣)┍
Did Michiru and Shiou loved each other more than brothers, like partners??? yes or no? kinda confusing this manga, plus I get the feeling that something is missing and that it is not at all complete O_O