To raise the reputation of Huang Chao to 100, you can follow the following steps:

1. Open Huang Chao and click Leave Palace.

2. In the interface, click Market Square.

3. Enter the interface and click the grocery store.

4. Enter the interface and choose to buy goods.

5. In the interface, click the Eight Diagrams Array.

6. After purchasing the goods, click the menu in the upper right corner.

7. In the interface, click Properties.

8. Enter the interface, find Bagua Chen, and click Use.

9. Finally, the strength can reach 100 on the interface.