There will be flaws in any crime. There is no absolutely perfect crime in the world, but we just can't find those missing clues.
Any crime is not a spur of the moment, it is an idea that grows out of long-term darkness.
The world is made up of two parts, one is black and the other is white. There is no absolute good or evil, and there is no absolute justice. This is all from a personal standpoint.
"What we have to do is to uphold justice. This justice is justice to us, but to people from different positions, it is the opposite."
"So what we have to do is uphold justice for the masses."
Concept: Part of it is black, part of it is white, and together they form this world.