2. After finding three treasures, send them to Li Yuegang.
3. Then find the antique shop owner, next to the jewelry store, who only opens the shop at night (you can adjust the time after 9 pm when you go).
4. Talk to the boss and choose the unknown treasure.
5. According to the dialogue, continue to press the pop-up option.
6. In the end, you will get 40 original stones and 654.38+ million morales.