The koi girl Qiao Yunsheng, who had been miscarried for many years, finally returned to her biological parents. From then on, she was doted on by five big brothers - the dignified military school eldest brother protected her, the calm financial second brother gave her confidence, the gentle medical student third brother cared about her well-being, the rational law student fourth brother supported her, and the clingy little brother stayed with her. She thought she could enjoy her family relationship in peace, but she was framed by Wen Yuran, the fake daughter of the Wen family, out of jealousy, ruining her reputation. The five brothers of the Qiao family took action in a thunderous manner and used irrefutable evidence to clear their sister's grievances, making the evildoers pay a heavy price. Her ex-fiancé, who once treated her coldly and humiliated her, regretted it so much, but Qin Yunshen, who silently protected her, solemnly confessed his love to her after her counterattack and promised to protect her happiness throughout his life. Qiao Yunsheng, who has the luck of being a koi carp, grew up cheating and grievances all the way, accompanied by her family and lover. She transformed from a cautious fake daughter into a confident, dazzling, happy and happy koi carp girl, and lived a life that everyone envied.