I don't know what was up with that. o_0; They 
didn't give any explaination for it in the anime 
and it was a bit confusing at first. (Are there 
two Kains? They can't both be his master. . .)

Personally, I like the way the second one looks 
better than the first. ^_^  But that's just me. 
(*grin*)

Many Sharp Smiles,
--Drac