How to change the name of a Chinese Odyssey 2

Go to the palace to find an NPC named Ban Hong. You can change your name (Gong140,37). Modifying nicknames requires a certain amount of game points. The more times you modify nicknames, the shorter the interval, and the more game points you need. The first modification is to consume 600 game points, and the specific formula is as follows: base point+[number of modifications *300]- time difference *300 (if the calculation result is less than 600 points, it will be counted as 600 points). Base point: 600 points

Number of months since the name was last modified (30 days equals 1 month)

Time difference: 1= 1 month =30 days (integer, less than 30 days means 0 days).

You can only change your name once a month.