In the underground boxing arena of Jilan Province in Southeast Asia, the fearless leader, Lan Yanxi, chose the fighter Qin Yang to be her personal bodyguard. What she didn't know was that he was an undercover agent sent by her nephew to keep an eye on her. As they spent more time together, growing closer with each encounter, Qin Yang's view of Lan Yanxi shifted. She was no longer just the pampered heiress he had been tasked to spy on—she became a woman he felt compelled to protect. He was willing to be her devoted protector, but the weight of his mission was something he couldn't escape. Loyalty or betrayal—how was he supposed to choose? When Qin Yang mysteriously vanished while trying to protect Lan Yanxi, she risked everything and began a desperate search for him. Her unwavering belief led her to Gu Mingchen, a man haunted by amnesia but whom she was convinced was Qin Yang. The once-proud heiress was now chasing love, ready to sacrifice everything.