First of all, if you haven't seen Kindred yet don't read this - the theory uses information from Kindred.
Anyways, in Kindred, the princess (from the past) says that it seems like Takeizo Kensei has two sides to him - a brutal side and a caring side. Is it just me, or did you all have a deja vu? Sounds a lot like the Niki/Jessica split personality, does it not?
Maybe, this is a kind of sickness that can afflict some heroes. If it's passed down through the generations, then it's even possible that Niki is a decendent of Takeizo Kensei. This would actually kind of make sense, since Takeizo has a flag with the Godsend symbol on it, and Niki has the symbol on her back - maybe because she was his decendant!
Furthermore, maybe there are other 'sicknesses' that can afflict the heroes? I, for one, will be on the lookout for them!

