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小悪魔 (こあくま)
koakɯma (♫)
Sprite of Koakuma in Embodiment of Scarlet Devil



Library Assistant


Library of Scarlet Devil Mansion

Official Games
Print Works

Koakuma (小悪魔) is a devil where she's seen around the library of Scarlet Devil Mansion where she apparently lives in the mansion. Her exact role is difficult to tell, but she is believed to be an assistant in Patchouli Knowledge's library. She was the fourth stage midboss of Embodiment of Scarlet Devil and little is known about her, and unless she makes another appearance, she remains a mystery.

General Information


In the cameo of Inaba of the Moon and Inaba of the Earth, she's seen cooking and flipping Okonomiyaki at a beach stand that's also selling ramen and Yakisoba in the middle of what appears to be rows of books in a library. Tying into Silent Sinner in Blue, the location of this stand was the swimming pool at Patchouli's library (Remilia's "Indoor Sea"). On Strange and Bright Nature Deity Chapter 14, she appears to be serving Patchouli in the library.

Character Design


Koakuma has no official name; this was confirmed by ZUN very early on. The commonly used name in the fanbase is Koakuma (小悪魔), meaning "Little Devil" or "Imp". ZUN used this term in an answer of the response to the question from the fans, while again stating at the same time that she was unnamed, though he did have rough sketches for a face sprite as well as plans to give her spell cards.[1]
Bougetsushou cameo.


The sprite of Koakuma in Embodiment of Scarlet Devil shows that she wears a black dress with white sleeves. She has a small pair of black, bat-like wings on the sides of her head and long red hair.

In a cameo appearance in Inaba of the Moon and Inaba of the Earth Chapter 23, she's depicted with two pairs of black wings, one on her head and one on her back. In Strange and Bright Nature Deity Chapter 14, she once again has black wings on both her head and her back. She also has short hair rather than long.


Embodiment of Scarlet Devil


Patchouli Knowledge

She seems to be Patchouli Knowledge's assistant.

Additional Information

Koakuma's modified sprite
  • In one of Embodiment of Scarlet Devil's sprite sheets, it shows Koakuma had an appearance in the Extra Stage sprites. It's just because the same image was taken from the stage 4 sprites, with a color overlay on the whole image.
  • Koakuma is one of the few characters that doesn't appear in Hopeless Masquerade as a background character. The reason is unknown.


Official Profiles

Official Sources


  1. ZUN's reply to messages on the former Gensou Bulletin Board 1
  2. ZUN's former blog "Touhou Shofu" 6