"The original Black Tortoise's bloodline spread thin as it passed from generation to generation. As more outsiders are added to the family, the further it deviates from the original bloodline."
"The deviation is still very much a Black Tortoise, but the bloodline elements within them are fewer, to a point where the later ones are born without certain skills altogether."
"In order to mediate that, I had all the different blood gathered, and the various family trees collected so I could use the sum of all to finally come as close as I can to the progenitor."
