The eldest regent, Princess Dongfang Youhuang, holds great power and is decisive in killing. She was ordered to marry Wu Jin, the unpopular concubine of the Wu family, as her consort.
A weak, pitiful but cunning young man, in order to survive in the princess mansion, he carefully pleases the heroine who is rumored to be murderous without batting an eyelid.
He thought she was just his protector, but he didn't know that she had already taken him into her heart when they first met at the Lantern Festival.
From the rules of the wedding night, to the moon shadow gauze, giving daggers, teaching kung fu, and sleeping together - she took him under her wing step by step, and taught him little by little what it means to stand side by side.
But when the undercurrent in the court surged and the battle to return power approached, he chose to stand by her side and became her strongest support. This is a story about growth and protection. There is also deep affection in the machinations.