Demons of Dex

Summary

You are Eino, a member of the druids. Your master, the archdruid has become old and it is time for somebody to replace him. As a young initiate you are sent to dungeon Dex, a mysterious labyrinth home to vile monsters. You must enter the dungeon alone and defeat three demon lords within. Can you achieve enlightenment and ascend to become the next archdruid?