In a world where mines are the main sources of minerals and where the greatest wealth can be found at their deepest levels, but only a few can reach it as there are many dangers. Different guilds of miners were created to find the most valuable resources.  Our main characters, Arcelia and her robot, S.O.R.A, belonging to the most important guild, Crystal Guildmaster, aim to reach the deepest layer of the mine.   

More information