I took my courage with both hands and wanted to look for the logos of KPop in Satanism: I fell one of the logos (I know which group uses it ... The use of this symbol goes with vampirism: From a blog post:
2nd Quadrant - The Stealth of the Vampiric Aspect
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This is the most widespread secrecy and perhaps the most intense part of Lucifer's secrecy. It corresponds to Vampiric Will, to the aspect of the Predator, Therionic Magic. It opposes the first secrecy, being a much darker aspect. Corresponds to the 'Prince of this World', the predatory Inner Beast.
It is associated with the five physical senses, being much more powerful when channeled through them (incense, touch, taste, vibration and scrying). It is widely used in works of Astral Vampirism, predation, Shadow Absorption, blood essence, and lycantropic magick (astral / mental change of form to appropriate the characteristics of a symbolically speaking animal).