Su Rong was already the last tiger demon in the world when she was rescued by Wu Bai. He took her back to Wuhuang City and accepted her as his disciple.
Although he is her master, he insists on her calling him: "Master."
As she grew older, she was eventually attracted to him, but his heart was always occupied by a woman.
She thought that as long as she waited, no matter how long it took, he would eventually look at her.
But she was wrong. His heart had never been open since that woman's death.