Original anime released by Tatsuki's self-produced animation group Irodori from 2010 to 2012. This science-fiction action story follows girls who fight with weird entities nicknamed "mushi" (bugs) and survive in a world of red fog. It won the 24th CG Anime Contest in 2012 and was remade into a TV series of the same name in 2019 by Irodori and Yaoyorozu.

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Alternative version: Kemurikusa (2019)