Su Cheng, originally the young master of the Su family, was labeled an impostor after Su Mingyu's return. Su Mingyu framed Su Cheng for harming their grandfather, and the Su family, convinced by the false accusations, committed him to a psychiatric hospital for three years. When Su Cheng was released, he was met with cold indifference from his family. Su Wan forbade him from calling her "sister," while Su Mingyu gloated and Su Zhen berated him. Although Song Yun showed some concern, she still sided with Su Mingyu. Scarred both physically and mentally, Su Cheng now relies on a prosthetic limb, struggling with mobility. Yet even after returning home, he faces constant blame from his family. Jiang Ningxue, once the object of Su Cheng's affection, appears in a close relationship with Su Mingyu, leaving him utterly disheartened. Caught in a web of misunderstanding and hurt from his own kin, Su Cheng's situation in the Su family grows increasingly desperate, with his future hanging in the balance.
