The long-lost first love reconnected with the heroine Lanye in an unexpected way. She could not touch or see, she could only hear. This is not an auditory hallucination, nor a fantasy, nor is it a haunting. As for what it is, the answer can only be revealed bit by bit by Lan Ye himself. Just yourself? No, of course there are friends who walk side by side.
Purpose: Protect Lily.