Modern corporate worker Yang Fan accidentally time-travels to the Ming Dynasty and becomes a fake eunuch. Using his quick wit, he narrowly escapes a body inspection and ends up serving as Consort Chen’s attendant. Amidst the intrigues of the imperial harem, he secretly practices martial arts manuals, rapidly advancing in skill and status — rising from a lowly eunuch to a powerful figure. Along the way, he outsmarts Eunuch Li, counters the Empress’s schemes, breaks the “Nine Sons Evil Dragon Formation,” and ultimately quells a rebellion during a grand sacrificial ceremony.