The Adopted Son's Vow

Su Cheng is an adopted son of the Su family. After the biological young master Su Mingyu returns, Su Cheng is framed. Crippled, he is sent to a mental asylum and suffers for three years. When he comes home, he faces cold family affection and schemes. To survive, he marries into the Nan family. He finds his fiancée Nan Sangning is a wealthy heiress pretending to be foolish. Supporting each other, they uncover conspiracies. Su Cheng regains himself, love and dignity.