The final interpretation right of this article belongs to the author
Due to long-term bad experiences, Lin Ming had another person in his body - Lin An when he was in junior high school. From the initial dislike and disgust, I gradually got used to his existence.
It's actually really nice to have someone who can always be by your side, talk back to you, and help you solve problems.
The author has something to say: Lin An can control his body anytime and anywhere. (Purely private)
Intention: I haven't thought about it yet