User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-4802891-20170727204532/@comment-4802891-20170814051558

He is the same Tokugawa Ieyasu as KOHA-Ace by the way. I just build an actual background around it since the original material hasn't touched it yet. In one of the picture where he shows his NP off, there are word like "TadaXXtsu Install!" which gives me the idea of a Kaleid Liner type of power, but inherent to the Servant's natural skills.