Where can the legendary hero of Altman buy a star scroll with diamonds?

Mall According to official website, the game "Legend of Altman" is known that the upgrade of the legendary star of Altman can only be bought in the mall with diamonds, which can be used to upgrade the weapon level and attributes of the character. The Legend of Altman is an ARPG single-player game developed by Hefu Tang Le Animation. Its main roles are Diga, Aubrey, Reggie, Ciro and beria.