Seventeen-year-old Yan Muqing has been bullied by her stepmother's sister Yan Muyang since she was a child. By chance, when Yan Muyang bullied her again, she picked up a beautiful necklace with a blue pendant. At the same time, Nan Qibai, a new transfer student in the school, appeared and rescued her. From then on, as long as she brings the necklace with her, Nan Qibai will appear by her side and help her save her when she encounters troubles and difficulties. Yan Muqing likes ancient cultural relics. She longs to become an archaeologist and go hunting for treasures. After experiencing a series of stumbles, she and several like-minded friends formed a treasure hunting team to find the legendary ancient treasure-blood jade and silver hairpin. When she found the treasure, she suddenly discovered that the team members who had the same goals as her were just using her to take the blood jade and silver hairpin as their own... At the time of crisis, what should Yan Muqing do...