After barbecue stall owner Wang Wenbin is abandoned by his girlfriend, he accidentally meets female CEO Xu Wei and mistakenly signs a contract to play the temporary father of her leukemia-diagnosed daughter, Anni. Originally wanting only to live a stable life running his stall, he unexpectedly unlocks his hidden identity. Wielding top-tier pharmaceutical enterprise resources and holding the rare specialty medicine capable of saving Anni, capitalist tycoon Zhang Mingyang and playboy Zhang Yi set their sights on profits and launch a commercial war. While protecting Xu Wei and Anni, Wang Wenbin tears apart the opponent's conspiracy. Wang Wenbin no longer disguises himself, revealing his full strength to protect the mother and daughter, while the Zhang father and son reap what they sow. Ultimately, he cures Anni, lets go of his career to choose companionship, and achieves a happy ending with Xu Wei.