In order to maintain his rule, Xin Sheng, the eternal demon king who ruled the world, went deep into the demon realm to find the highest and strongest power. Thousands of years later, he has become stronger and younger, and the world has also changed... (Source: Bilibili Comics)

The protagonist Chang Zaikun has been able to see terrifying "weird" creatures ever since he was a child, but he was never afraid, rather deeply attracted by the creatures and fell in love with them from the bottom of his heart. One day in high school, he accidentally met a weird administrator and received an invitation: to manage a "prison" inhabited by the creatures, and to find those who were lost in the world! (Source: Bilibili, translated)