Cheng Yuan is an extremely mentally unhealthy person, suffering from schizophrenia and bipolar disorder. He has been experiencing domestic violence and abuse in his childhood, which caused his temperament to change drastically when he grew up. He often resorted to self-mutilation to wake himself up.
Lu Yang was like the only bright person in Cheng Yuan's world. He had a good temper and was good at studying. When she first came into contact with Cheng Yuan, she thought he was a weirdo. But as she gradually came into contact with him, she found that this man was extremely fragile and insecure inside. She also found that she had feelings for him, so he tried his best to save him. In an accident, Cheng Yuan almost died. It was also in this accident that Lu Yang began to talk about his feelings for Cheng Yuan and finally confessed to him.
Intention: Never give up no matter what