Jake Long was a poor orphan who had grown to what he was because he grabbed the attention of a strong and powerful woman.
Actually, it was Zhi Hu who had seen the boy and notified his lady about this kid. Jake Long was frightened at first, but everything changed later.
She gave him life, an identity, and a goal. She was the one who trained him personally and taught him cultivation.
Slowly he forgot his past and started living the present with her. He was so happy that even killing became too easy for him.
He would do anything she asked, but at the same time, since he did so, she would spoil him. So he was raised more like an orphan who became a prince.
His cultivation though made him more open and real about his feelings, and he discovered that he had sexual desires towards women, earlier than a normal teenager.