Caleb Steven, once hailed as a hero by Cathay, spent ten years undercover in a criminal organization to protect his country. During this time, he endured misunderstandings and criticism from the public. His daughter, Adeline Steven, grew up with a vague memory of her father and misunderstood him deeply. As an inspector, she eventually brought Caleb to trial, demanding the death penalty.
Sanitation worker Lina is forced to reveal her true identity to protect her daughter, attracting a swarm of profit-driven organizations that seek her out. It turns out that Lina was once a celebrated national women’s soccer player who had disappeared from the spotlight years ago. While evading those hunting her, Lina meets her daughter’s soccer coach, Coach Law. The two gradually develop feelings for each other and eventually come together. To her surprise, Lina also discovers that Coach Law is, in fact, her daughter’s biological father.