Armor crafted by the Flame Cow King himself for the age of coming ceremony for his son, Honghaea.  It is a well-known tale that the Flame Cow King cut off one of his horns to create this armor.  This also proves the depth of his love for his son.  When Honghaea was defeated by Sonogong, and this armor was returned with his body, the Flame Cow King is said to have cried standing for a full week before the armor, not moving an inch.