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Grimm Grimoire Hamlin
Mondaji Grimm Grimore
「Picture of the 3 members taken from the anime opening.」
Community Information
Leader Black Percher
Total Members 3
First Appearance
Anime Debut Episode 7 - Someone Might Get All Kissy with Asuka in the Dark?


A community that once served a Demon Lord from the community, Grim Grimoire who are believed to have died after being defeated by another community.


Have no location for it was newly formed then destroyed before it settled on land.


They attacked the Salamandra community in volume 2 of the light novel and episode 7 of the anime.


Because the Piper of Hamelin was newly formed they only had 3 members and a doll:


Wanted to expand the community - Failed


  • the community is based on the fairy tale the Pied Piper of Hamelin
  • all the community members are demons based on theories of how the children in the fairy tale died:
    • Black death(Black Percher)
    • the pied piper(Ratten)
    • landslides(Weser)
    • Storms(Strom)
      • Unlike written/explained in the novel, the correct term for "storm" in German is "Sturm". "Strom" means either electricity, current (both electrical and water), stream or torrent. This mistranslation might have been a mistake by the author or the translator.