The story follows top-tier S-Class Alpha Sheng Shaoyou, who, while infiltrating the company of his business rival Shen Wenlang, unexpectedly encounters Hua Yong—a stunning Omega who matches his every ideal: beautiful, fragile, and heartbreakingly tearful. Determined to claim this ""delicate little orchid"" for himself, Sheng Shaoyou slowly realizes that behind Hua Yong's vulnerable appearance lies a carefully calculated plan... and that he's somehow pregnant! Hua Yong, actually an Enigma posing as an Omega, has only one goal: to make the proud Alpha willingly submit and become his Omega.Meanwhile, another S-Class Alpha, Shen Wenlang, begins to suspect that his secretary of ten years, Gao Tu, is hiding secrets of his own. Forced to live as a Beta for survival, Gao Tu is actually an Omega—one who ends up unexpectedly pregnant with his secret crush and boss's child...

Adapted from the novel of the same name by web author Nong Jian, this series is the world's first live-action drama to bring the ABO universe to the screen.