Every time Xie Shanyue and Shen Banxia fight, the paranoia on both sides is dug deeper - until both of them become bloody, they realize that what they are holding in each other's hands is part of the other's body.
The only tacit secret between them is that the moon is always shining.
It is a stream of consciousness work, and there may be some lax logic. If there are any conflicts, it is purely accidental, so please bear with me.
Concept: relative stillness and absolute motion