King didn't really get an interesting story plot until tekken 4 when craig marduk showed up. What ended up occuring was marduk ended up killing kings mentor armor king in a match while he was losing. While king ended up beating him he chose not to kill him.
Later on both heard rumors about armor king reapearing and tried to find him again and that's the gist. Turns out there are two armor kings and one was looking for revenge on his brother
not really what i meant. i was talking about how grapplers rarely can use their grabs to good effect in high level play resulting in people just playing them as strikers. and how that seems to be the only game with that issue.