Su Wantang, the concubine of the Su family in Suzhou, married into the Zhenbei Hou Mansion on behalf of her eldest sister, and married Gu Zhaoting, the cold-faced general who was rumored to have "killed two wives." She was left hanging out in the wedding room on her wedding night, and was ridiculed by everyone in the Hou family. However, she conquered her mother-in-law with her cooking skills, saved her subordinates with her medical skills, helped the general defuse the enemy's conspiracy, and gradually broke the rumor of "conquering his wife". Gu Zhaoting went from being cold and alienated at the beginning to being moved by her tenacity and warmth, from "having to marry" to "having to marry her". The two supported each other during the fight in the prince's house and the border war, and finally became each other's salvation, performing a "melting iceberg" drama of marriage first and love later.