Song Yan is the leader of the Song Group. He is unsmiling in front of others but crazy behind others.
No woman can catch his eye, except Zhou Tang, an orphan.
She couldn't explain why, but Song Yan just liked her.
Even if she curses, Song Yan likes her.
Zhou Tang: "Treat the sick!"
Song Yan: "You are my medicine."
Intention: Continuous self-improvement and continuous struggle