Mr. Gu’s little stand-in

Shen Yu was an omega who was diagnosed with intellectual disability at birth. Therefore, the Shen family had their housekeeper take him to live in the suburbs soon after he was born, and from then on they announced to the public that they only had one son, his brother. —— Just because he and his twin brother had the same face, the kidnappers who were supposed to kidnap him mistook him for his brother who came to see him that day. The Shen family concealed the fact that his brother was dead or alive, and in order to maintain the marriage with the Gu family, they took Shen Yu back to the Shen family and married him to Gu Yingyi in place of his brother. Little did he know that his brother h...