スレンダーマン
Slender Man is a thin, tall humanoid with no distinguishable facial features, who wears a trademark black suit. The character originated in a 2009 SomethingAwful Photoshop competition, before later being featured as a main antagonist in the "Marble Hornets" alternate reality game. According to most stories, he targets children. The legend also caused a controversy with the Slender Man stabbing in 2014.