It was a sudden confession from her husband... She found out that her husband was the cause of her infertility. She was also faced with the hopeless reality that even if she continued with infertility treatment, there was almost no chance of pregnancy. Aika still wanted to have a child with the man she loved. She desperately continued to search for the possibility of pregnancy, wanting to see the happy face of that man. As a last resort, she chose to ask her husband's biological brother, who is her blood relative, to inseminate her.