[Ancient romance, sweet abuse, fights in the palace and house, chasing his wife in the crematorium, intrigues...] She was originally an orphan from the previous dynasty living among the people. In order to find out her true life experience, she married into the Regent's palace as an orphan girl from a merchant and became his nominal concubine. He was powerful and cold-hearted. At first, he only regarded her as a disposable chess piece. She worked step by step, using softness to overcome strength, and struggled to survive amid the struggles in the palace and the intrigues of the court. She didn't know that every time she was in danger, he was secretly closing the net to protect her; every time she encountered a crisis, he was quietly paving the way with the power in his hands. The two have gradually become soul mates who "live and die together" from a "marriage of interests" masked couple.