Ji Yue had accumulated all the merit she needed and was about to become an immortal.
But when the celestial envoy arrived to escort her, she changed her mind.
The impoverished scholar whose life she had saved several centuries ago was still down on his luck in this life, and his journey to sit the imperial examinations was fraught with danger.
She was willing to give up her place among the immortals and remain in the mortal world to repay her debt.
Her newly awakened immortal power clashed with her old demonic power. Any time she used her abilities, they backfired, and saving others cost her the chance to ascend.
She often took the form of a tiny sparrow to secretly protect the scholar on his journey, only to run into Jiang Ke, a cold-faced demon hunter.
From then on, the little sparrow had to restrain her powers to repay her debt while avoiding the demon hunter who kept a close eye on her.