With the passage of time, the creatures created by the creator gradually formed a social system in the world, while the goblins based on all creatures became more and more arrogant. Because of this, there is hatred and distrust between arrogant goblins.
150 years ago, goblins fought with humans, but as a result of defeat, the dark gas condensed by human disasters, destruction and cruelty enveloped the goblin forest.
After the war, the arrogant goblins began to reflect and returned to their pure hearts and natural and illusory lifestyles. After that, regardless of the good guys and bad guys, the goblins opposed living with human beings and began a self-sufficient closed life.
In this war, some goblins were angry because they refused to accept their cowardice, abandoned the creator "Yin Haisa" and defected to the dark god "Glenken". In order to prove his faith, he turned his skin into a black color like "Glenken". But because of the curse of "Yin Haisa", our life span has become as short as that of human beings.