Xu Yanchi, the number one playboy of the capital, appears unfocused and idle, but is actually sincere and deeply emotional. After Su Wan ends her past relationship, he sincerely proposes to marry her, protecting her safety with respect and deep affection. After their marriage, sudden turmoil strikes and border wars break out once again. Xu Yanchi resolutely follows his father to the battlefield, growing in responsibility through trial after trial to protect his home and country. Su Wan steadfastly awaits him throughout. Having weathered separation and trials, the two finally welcome a triumphant reunion, staying hand in hand to embrace a happy life together.