Wonderful!
<Snipped quote by Leos Klien>
I haven't revealed his fully history so there is context missing. Especially on his escape. I never stated how long it has been since he broke free of the Brotherhood but his "leave" happened around the same time as that sects fall. There is meant to be spaces to be filled through actions and discussions throughout the rp itself. Also what says he has to be celibate? I don't see that. Plus in lore the Dark Brotherhood never blocked away sex, love or anything of that nature. Sithis himself had children and was "married" to the Night Mother, though not his own words. The Skyrim sect had a married couple. His training was purely to create the ultimate assassin but you mistake that he must be an emotionless void when the Brotherhood never was about that. Their tenets do not state and members openly throw their emotions around.
<Snipped quote by ManoftheNorth>
Most of my points are up above but, Wrath of Sithis is never stated to be directly from the Sithis. Plus the Night Mother and the First Listener believed they heard his voice. When do Shadowscales enter the Void? I don't remember such a thing. Sithis has never actually made an appearance or spoke. No one enters the Void as it is what existed before Oblivion and everything but supposed to be where you go when you die as worshippers believe.