The mark left on the enemy serves to remind the tribe that this person is my enemy. Thus, any Winged Tiger they encounter will sense this and kill the enemy who has harmed their kin. This is also why humans and magical beasts are unwilling to provoke the Winged Tiger clan, known for their short tempers and formidable martial power.
Of course, there are marks that identify enemies, naturally, there are also marks for other purposes. For instance, the mark on Tan Shuangshuang indicates that this human is a protector, and should not be harmed by the tribe when encountered.
Indeed, the mark's use is not limited to this; being accepted as a protector by the aloof Winged Tigers is akin to being recognized as a friend by their tribe. Not only will they not harm you, but they will also reach out to help if you encounter danger.
