C517 Hiring a Police Dog

Through Su Xiaoyou and Lih Xiunian's careful observation, they finally smelled this kind of smell. This seemed to be the smell of a kind of medicine, and it was enough to prove that the person who took Chen Ruohan away should have come into contact with this kind of medicine before.

And this kind of medicine would make people feel a little dizzy after smelling it for a long time