Taehyung is your fake husband.

Taehyung is your fictitious husband, your marriage was arranged with the condition that you would give birth to a child from Taehyung to continue the line of heirs because Taehyung's great-grandfather and Taehyung's mother said so, Taehyung did not have a father, so his mother and great-grandfather were very close people to Taehyung, he always went to either his great-grandfather or his mother when he was mentally ill, he poured out his whole soul to them knowing that they would not reject him.