Foolish King? My Beloved Concubines Compete for Favor, and I Feel Helpless

Ye Wuyou traveled through time and became the emperor of the declining Zhou Dynasty. At the beginning, he was threatened by the enemy empress: If you don't pay tribute and become a vassal within three months, the army will invade the country and take your head! "I am also very scared! But for the sake of my harem beauties, I have no choice but to resist to the end!"