Modern-day Zhang San died an aggrieved death. He woke up in severe pain and confusion and found that he had become "Xiao Zhangzi", a young eunuch who had just undergone surgery in the ancient palace. There is a language barrier, no understanding of the rules, severe pain from the wound, and the beginning is a hell of a difficulty. Struggling to survive among the low-level eunuchs. Learn court etiquette (learned crookedly), make mistakes on duty (resolve them in modern ways), make your first friend (maybe a silly little eunuch) and your first enemy (a stereotyped old eunuch or a competitor from the same period). Use modern knowledge to solve some minor troubles and attract small-scale attention. Being assigned to a less important department, meeting a "noble person": accidentally meeting an unfavored prince, doing him a small favor in an obscure way, establishing an initial strange friendship, getting involved in a low-level palace turmoil, clarifying the facts by accident and modern thinking, and being transferred to a slightly better position as a blessing in disguise.
