Compatibility: Slime

2000 years ago, Demons appeared in Antarctica and did something that made Earth expanded. Humans and Demons went to war but humans were too weak. A group of scientists found a way to become stronger and this method helped humans fought the demons on equal grounds.

Dean awakened his power but he got unlucky because he awakened a compatibility to slime. He was pushed aside by his family. Upon entering the first dimension, Dean obtained something that can helped him becoming stronger.