"九千岁", a mini-series on the Xiaohongshu app (小红书), is about a prince of the previous dynasty who had to hide, using his grudge as a driving force to rise to the position of a high-ranking eunuch, 'Nine Thousand Year Monk' (a term for a powerful eunuch who showed himself to be superior, second only to the emperor, who was called 'Ten Thousand Year Monk') to wait for the day of reckoning with the current emperor. Originally, the Nine Thousand Year Monk just sat on the top of the mountain, watching the dragon children of the Xiao clan fight for the throne. Until the appearance of the Sixth Prince, his plan changed! Sixth Prince 'Xiao Shiqing' lost his mother unfairly, and the cause was the crown prince, while he was just the son of a concubine. But the injustice he received could not be ignored. He chose to join hands with the Nine Thousand Year Monk 'Pei Huai Zhi', even though deep down he did not like the other party, but he was forced to because he did not have the power to fight alone...