The second installment of Seven-Zero Romance Season 2, A Friendship with Qin, tells a series of intricate stories through the eyes of its protagonist, Ouyang Xue. The story follows Ouyang Xue as she cracks the password to the floppy disk her father left behind, uncovering the truth about her family history and her father's last wish. During her investigation, Ouyang Xue discovers not only her family's secret ties to a uranium mine, but also issues involving national resource security, cyberattacks, data protection, and more. Through a series of adventures and challenges, Ouyang Xue gradually grows into a brave and clever woman. She fights not only for her family's honor, but also to protect the nation's resources and data security.