A collective name for a group of derivative Vocaloid characters illustrated by Hanji (Hansi) (aka. Hansi) and Momopanda. The characters are based on the Vocaloids produced by Crypton Future Media, given a heavy metal persona and also known as Type-H or Type-M by their respective artist.
Only Hagane Miku's surname is shared by both artists. And it is Momopanda that has created Internet Co. Ltd based Hagane types.
