We are notified that our book has been selected to participate in the half-price event. Everyone opens the event center and scrolls down. There is a group discount event. Click on it to join a group and you can subscribe at a 50% discount. If you need it, you can participate.
Also, after fully subscribing, you can receive the Light of the Great God in the upper right corner of the author's avatar on the web page. Because I only have one book under my name, I can receive it directly after fully subscribing.