At least they attempted to be poetically cruel about it.

Memory is hazy but for those who are curious, Chakan dueled Death himself to win immortality. He was granted this, but at the stipulation that he could never die so long as evil existed. After eons of fighting, he's ready to die so he's now trying to purge evil on earth, by hand I guess.

At the end of the game, he's defeated evil on earth. Death shows up and says he meant ALL evil, and points to the night sky. There are countless worlds to purge, and we're not even sure he can reach any of them.