Anastasia (アナスタシア Anasutashia) is a sister studio of Eushully. Its focus seems to be on game genres outside of the traditional RPG/SRPG/SLG.
The mascot Nasu is named after the sister brand.
She also appears as a companion "Maid Angel" in the games God Catching Alchemy Meister and Amayui Labyrinth Meister.
Its head office is in Japan