The Graffiti Demon is a unnamed member of the ANTI-THESIS.
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The graffiti demon is first seen taping a newspaper from the Newspaper Club and writing in graffiti that the school festival will be filled with blood and that there's no future (to frame Tsukune Aono). He then appears to Tsukune to kill him and attacks him in speed with legs that turned in to sharp blades. When Moka interfered, the graffiti demon charges at her to kill, but with great speed Tsukune was able to get to Moka before he did and punches the graffiti demon in defeat. The graffiti demon is later seen in the infirmary and is about to get a shot from Mako Yakumaru.