"Devil Slayer - Raksasi: Digital Artbook" contains hundreds of beautiful images related to the game setting.

File formats: JPG and PNG

Digital artbook files will be located in Steam\steamapps\common\Raksasi\Digital Artbook.
Find Devil Slayer - Raksasi in the Steam library, right-click it, then click "Properties", select the "Local Files" tab, and click "Browse "option. Then enter the "Digital Artbook" folder to access the content included in this DLC.