To escape the Huo family's forced marriage and protect the Shen Group, Shen Zhiyi has a flash marriage with the mysterious retired soldier Gu Chenzhou. After marriage, Gu Chenzhou becomes her driver and bodyguard. Facing successive plots set by Huo Jingchen, Li Jiuchuan, and Lu Chenxiao, Gu Chenzhou helps Shen Zhiyi resolve crises time and again, safeguarding the Shen family. As the ultimate villain Xie Hanzhou kidnaps Shen Zhiyi, Gu Chenzhou activates the Dragon Guard, and his true identity is finally exposed. It turns out that this low-key contract husband is actually the Dragon Commander of the Northern Territory, feared by all parties. Amid hardships, the two move from a contract couple to falling truly in love.