Sister's Favorite, Brother Must Be Good

After returning to the country, 20-year-old Si Nan, the young master of the Si family, is deliberately pursued by 23-year-old Gu Weiyuan, the CEO of the Gu company, who has loved him since three years ago. Mistaking Gu Weiyuan for his future sister-in-law, Si Nan actively tries to match them, unaware he has already fallen into her gentle trap. Through misunderstandings, testing, and protection, feelings gradually grow between them. Gu Weiyuan fiercely protects and cherishes him, clearing all crises for Si Nan, while Si Nan transforms from a rebellious youth into someone deeply in love. Finally, they overcome all obstacles, confirm their bond, and live in sweet companionship.