Life is inseparable from its two opposing poles: day or night, clear or murky, exceptional or mediocre, upper class or lower class, pampered or plain, noble or despicable, refined or vulgar, rich or poor. We all yearn for a world of equality, but the road to such a world is long.
If life is a game, some people follow the rules and do their part, accepting what is right and wrong as they live out their lives in peace. Yet some are always breaking the rules. They disregard them, whether as the ones who make the rules or as players in the game, but they all do it for the same reason: to profit. And the profits they gain come at the expense of countless ordinary people.
In this vast world, once rules are established, the distribution of wealth and power becomes unbalanced. Wealth and power gained by breaking the rules become concentrated: a few people gain more, while the majority are left poor and helpless. The old rules of the game are broken, and new ones take their place. What is concentrated becomes even more concentrated, and what is lacking becomes even scarcer. Doesn't this kind of story play out around you all the time?
Who will protect the interests of those people? Who will fight for what has been taken from them? And who will warn those who break the rules? The Cleaners.