In this world, wherever there is darkness, there is light, and there are also those who survive in the gray areas. Sometimes just because you can't see it, doesn't mean it doesn't exist, much like those who wear disguises—sometimes even the person beside you at night doesn't know if their partner has another side.
In the world of darkness, there are all kinds of things; those on the side of light will not go to great lengths to whitewash everything black, because it's impossible and because of the rules of survival. There are always some things that require darkness, and some tasks that light cannot solve.
Black and white coexist, which is a rule of this world. Naturally, the light holds the advantage of being aboveboard, but a wise person wouldn't vainly attempt to replace darkness. Not only is it courting death, but it also tarnishes oneself.
