Echidna is a giant serpent demoness who rules the great forest in the depths of Demon World.[1] She has taken over the Mitis Forest, where she flies around and scatters her Chimera seed-eggs to propagate further demons, with which she plans to create a world where demons would prosper.[2] Both Nero and Dante run into Echidna and fight her during the course of Devil May Cry 4.