Responses
I think the "real" Riya was actually both personalities combined... His personality split after that shock and as a way of coping with life each "part" developed as a personality on its own; once things were better for him and he was able to endure the burden the "real Riya" took over and had both Black and White put back together.
...that's what I gathered at least :P
I am so confused who is the real riya ? The bad or the good one who end up with astutsi ? Well i like the bad one