The descendant of a tea ceremony family traveled through Chenghou Mansion, where the bullied concubine Jiang Suisui was almost sold to a bad old man by his mistress Du Mute at the beginning. She worked step by step, using her superb tea-making and tea-ordering skills to win people's hearts, and at the critical moment of life and death, she rescued a seriously injured and dying top killer (secret guard) as her slain soldier and husband.
In the treacherous feud at the Hou Mansion in Bo Yun, Jiang Suisui used tea as a strategy and poison as a supplement to tear away the hypocritical mask of his aunt, accumulated huge wealth by running a tea house, and cultivated the downtrodden "humble" secret guard into a "living king of hell" that frightened the capital.
From using each other to relying on each other for life and death, the two finally found out that the male protagonist was actually a descendant of the royal family who had been wronged. The couple teamed up to fight back to the court and trample under their feet all those who had humiliated them.