The red walls and glazed tiles of the Forbidden City have trapped countless living souls, and the Concubine Hua Shilan is the most powerful one among them. She was used to burning Huanyi incense in the warm pavilion of Yikun Palace, listening to the flattery of others, thinking that the emperor's favor would protect her from worries for the rest of her life, but she didn't know that there was a bone-crushing plan hidden in the incense, and the favor was like a mirror.
Until one snowy night, a man in strange clothes broke in outside the palace gate. He called himself Meng Yanchen, and there was no trace of awe for the imperial power in his words, but his eyes concealed a calmness and restraint that was incompatible with this deep palace. He didn't understand palace rules and etiquette, but he could see through her loneliness under her domineering attitude; he didn't know the emperor's mind, but when she was in trouble, he could rescue her in a brand-new way that she had never seen before.
One is a proud concubine struggling in the whirlpool of imperial power, and the other is a restrained gentleman who accidentally fell into another world. When Meng Yanchen's "modern thinking" collides with Concubine Hua's "rules of survival in the deep palace", and when his "silent protection" melts her obsession with "favor", the story of Yikun Palace is no longer just about fighting for favor and calculations. But, can two people living in different time and space find a warmth for each other that will not be crushed by fate within this red wall? And was Meng Yanchen's appearance an accident, or was there another hidden secret?