Justice represents a balance needed to achieve a fair life. It's the need to balance wrong with what's right. Justice can also mean weighing each side to come to a fair solution.
[Byakuren's whole wish to see a world of equality among humans and youkai and an end to such prejudice.]
Justice Reversed -----------
The Justice Reversed represents an irrational and a biased opinion. It can also represents using unfair means to get a desired outcome. It represents an imbalance lifestyle or a corrupt attitude.
[Her whole belief that humans are to blame for the issues between human and youkai. Not to mention, there was that whole sacrificing an entire fleet of monks and other humans just so she can recruit Murasa to her cause. Plus, she was using the humans and the youkai for her own benefit, before her change of heart.]
BrokenEagle98 said: She's Judgement, which is more fitting, her being a Yama and all.
But Judgement isn't about authoritative, court-room-style judgement; it's about self reckoning and finding a higher purpose. Justice is totally Shiki's shtick.
