The nine-colored compass originally pointed towards the direction of Wuji Sect's back mountain.
However, because Yino had used it once before, the sensor's positioning had been reset. Now when Chen Jianxin sprinkled deer antler powder on it again, the nine-colored compass would naturally reposition to the coordinates of the nine-colored divine deer. Yino had of course anticipated this.
So when he handed the deer antler powder to Jinyue, he specifically reminded her of the favor.
Yino believed that Jinyue would resolve this trouble for him.
If the nine-colored deer hidden inside Yino's body was exposed, then the Snow Village case would naturally be solved. Although this would cause considerable trouble for Yino, correspondingly Chen Jianxin would have no reason to go investigate at the Mountain Temple again. This clearly did not align with Jinyue's behavior logic in the game storyline.
