The Davil's apparition darted out of the clinic when Chunji processed what the receptionist said. Chunji highly doubted that Davil was healthy even after consuming a few of his potions. "Davil Wund appears to have left a long time ago, and judging by your reaction, it seems that either he left before your shift or talked to someone who didn't bother to document his release." How odd. Chunji turned and bowed his head to the receptionist.
"I will be taking my leave. If there is any need to document my leave, I'll address it later." The consequences weren't of little matter; the apparition was getting away. Chunji sprinted after the afterimage. The whole situation was strange. How was the receptionist unaware of Davil's departure? Who was Davil talking to if it wasn't the receptionist? How long has it been since Davil left the clinic?
It was odd, too odd even. Chunji tried to figure out why Davil had left. Did the healing magic that he cast onto Davil have a strange effect? It is highly doubtful, as previous tests usually resulted in high volumes of pain. Was Davil trying to attend the attunement ceremony? There was a chance, but Chunji's experience with Rio dampened the possibility. That left Chunji with a pessimistic conclusion.
Davil held a dark secret. Everything led to that conclusion. Emelie's fake leg, Rio's aggression, Steeler's query, and many more instances only proved that conclusion.
Chunji prayed to the Lotus Serpent that when he found Davil, he wouldn't have to deal with the situation that Hildegrunde ran into when she chased after Steeler. He was already straining himself trying to find Davil; a fight afterward would be unideal.