Xu Chengyi (29 years old)
• In the eyes of outsiders: a jewelry designer, independent, venomous, and celibate.
• True background: Her parents' marriage failed + her ex cheated on her, which made her regard "love" as a joke and "making money" as a belief.
• Hidden weakness: Every birthday, I secretly go back to the old alley to see the wall covered with graffiti painted by the male protagonist.
Shen Yan (31 years old)
• In the eyes of outsiders: A new investor is cold-faced, abstinent, and ruthless.
• True background: He has been secretly in love with the heroine for 20 years, taking every step of the way, turning "business marriage" into "legal pursuit of his wife".
• Fatal weakness: All rationality collapses instantly when the heroine says "brother".
