Gao Dexian, a fifth-grade eunuch who served in the palace during the reign of Emperor Xuanzong of the Tang Dynasty, was smart and tactful, proficient in the rules of palace survival, had some knowledge of writing, and had some superficial skills because he grew up in a monastery when he was young.
Due to an accidental involvement in a palace coup, he fell off a cliff in the chaos. Holding a mysterious "star jade pendant", he traveled through time and space, and his body and soul came to the modern city of the 21st century together.
With his photographic memory, top-notch observation and tactics, and proficiency in various cultures of the Tang Dynasty (etiquette, food, art). Getting mixed up in modern times
