His apprentice, Golden Boy, accidentally allowed the unruly White Tiger Star under his watch to escape from the celestial realm into the human world to cause trouble.

Through cunning manipulations and machinations, the White Tiger Star causes the death of the patriotic Song dynasty general Yue Fei, absorbs the energy from Yue Fei's guardian star, and becomes more powerful in the process.

As a punishment for his failure to stop the White Tiger Star, Ji Gong is banished to the human world, where he is reincarnated as Li Xiuyuan.

In the human world, he is destined to do good deeds such as fighting injustice and helping the poor, as well as to continue his quest of taming the White Tiger Star.

He has various allies and friends, including Golden Boy, all of their romantic relationships often intertwining with the problem of the day that Ji Gong intends to solve.