Justice is a fundamental concept in ethics and politics. In ethics, it usually refers to what people ought to do according to certain moral standards, and also to a moral judgment: fairness.
But fairness, too, is defined by its time.
In a slave society, owning slaves was considered fair. In a feudal society, being a landed gentleman was considered fair. In a capitalist society, capital was considered fair. In a world where individuals can wield great power, strength is naturally fair as well.
Since justice has its limits, Su Muzhe never claims to be righteous. Everything he does is guided by what he likes and dislikes, not by any stance.
Ignorance is the prevailing current of the world, and power is its ruling force. In a world where the difference between good and evil depends only on what is needed, whether one becomes a wanderer, a scoundrel, or a pile of bones is all determined by the twists of fate that carry one along with the tide.
PS: This blurb is for reference only. Please refer to the main story. All content is fictional; any resemblance is purely coincidental.