Shen Ruanruan's life motto as a sister-obsessed girl is simple: wherever her eldest sister goes, she goes too. When her eldest sister finally cuts ties with her rotten romance and demands a divorce, Ruanruan wastes no time divorcing her own husband and clearing out the marquis's residence, joining forces with her sister to establish their own household and build a business. Xiao Chi, a proud commander who is innocently dumped, panics and desperately pursues his wife, willing to spend his entire fortune to protect her and ensure she lives without worries. The sisters stand shoulder to shoulder, serving as each other's armor, while two couples find sincere and devoted love. But just as Ruanruan happily counts her banknotes, Xiao Chi pulls her into his arms and whispers with a smile: Who was really behind that staged accident on Vermilion Bird Avenue all those years ago?