Gu Lanyu and Xu Weichen's fathers are comrades who joined the army together, and their mothers are best friends.
Xu Weichen's mother fell ill and died when he was ten years old. His father married a stepmother when he was 13 years old, and she has been abused since then. Gu Lanyu's mother couldn't bear to take Xu Weichen home to take care of her. Gu Lanyu always thought that Xu Weichen was trying to rob him. His parents had many opinions about Xu Weichen.
Gu Lanyu (with a cold face): Stay away from me
Xu Weichen: What will happen if I don't?
Later, it was the love-hate relationship between Gu Lanyu and Xu Weichen (although it was a little bloody, it was very sweet)
Aloof, shady × smart, gentle and tolerant
Concept: youth, growth, love