The Rivalry of Nina Williams and Anna Williams
Another interesting plot in Tekken is the rivalry between the two sisters, Nina and Anna. Somehow something started their rivalry. If there was anything else, I think it had to do with the fact that their parents were playing favorites- their father chose Nina and their mother chose Anna. Whatever, it was a dysfunctional family. The two never got along from Tekken 1 to present, the rivalry briefly stopped in Tekken 4- only because Anna Williams was absent during that game. Somehow the rivalry is still not fully explained.