The Slayer of vanity
Tengu, one of the legendary creatures found in japanese folklore; is considered a type of super natural being also known as yokai. Their supernatural powers include shape-shifting into animal or human forms, the ability to instantly move from place to place and appearing in the dreams of the living.
Even though the literal meaning of Tengu's kanji 天狗 means Heaven Dog or Celestial Dog the name has no relation with the creature and it has its origin in the chinese mythology where the celestial dog was a comet or a meteor and was also considered an omen of war.
The earliest tengu were portrayed with human and avian characteristics with long beaks but later the feature became humanized as an unnatural long nose. the bird-like tengu is known as a mischief maker prone to playing tricks on buddhist priests, Budhist religion long held that the tengu were disruptive demons and harbingers of war.
The Tengu is known as the slayer of vanity since they dislike people who like to show off and boast about material possessions and achievements, they used to punish on vain and arrogant samurais.