Yen Sid is actually a celestial being from another dimension, created by an omnipresent being known as "The Light". The creator of the Kingdom Hearts Universe. While residing there Yen Sid befriended the Light's right-hand-man known as Chernabog, as well as a peaceful being known as the Spring Spite. Eventually greed and jealousy consumed Chernabog's heart and he led a rebellion against the Light seeking to take power for himself. Yen Sid was tasked with leading the Light's army to battle his former friend in a war that shook the heavens. By the end Chernabog and his followers were defeated and casted out of their dimension. Though they were too late in stopping him from putting his malice into the hearts of mankind. A long while later the Keyblade War erupted that threatened the world bac