"Actually, your adoptive parents had saved your biological father once before. He was severely injured at the time, and late at night a few days later, he appeared at the Bai Family again, his injuries even worse than before.
Moreover, he was holding you in his arms. You were only a little over three years old then. Your biological father said he was being hunted by enemies and wanted to temporarily foster you with the Bai Family.
Since your adoptive parents could not have children, they were overjoyed. I was also present that night, and coupled with the large sum of money your biological father brought out, naturally I had no objections.
Chapter 37