一统天下的万古魔君辛升为了维持自己的统治，深入魔境寻找至高至强的力量。千年之后，他变强了，也变幼了，世界也变得完全不一样了，作为最强魔君的我，即使只有一个小正太的身体，我也要再度恢复往昔帝国的荣光！
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…
