Synopsis：As the chief instructor of District 21 in the Gray Iron Delta, Shu Lan catches Lu Jinhan stealing classified files while she is on duty. She shoots Lu Jinhan in the chest, but he manages to escape. Shu Lan travels to Huaguo to search for the files and happens to run into Lu Jinhan, who is sitting in a wheelchair. To search him, she pretends to trip and falls onto his lap, playing the role of a delicate and innocent girl and making Lu Jinhan fall in love with her at first sight. During their clashes, Lu Jinhan gradually discovers that Shu Lan is the District 21 chief instructor who shot him, while Shu Lan also uncovers the secret behind the explosion that happened back then. The two go from enemies to allies, working together to unravel the mystery and protect justice amid conspiracies and danger, ultimately finding both love and the truth.