The Devil Wakes up at the Beginning, but Is About to Die in the End

After Lucifer woke up, he found that he had traveled to a world of swords and magic, where races were numerous and gods and kings coexisted. And he discovered that he was actually the long-sleeping Demon King, with only three days of life and a Goblin Mansa younger brother at the beginning. What's even more outrageous is that as a demon king, he is so poor that he only has a pair of black trousers. The devil Lucifer was born with arrogance and nobility, and would never allow himself to be so humble and low-key... Many years later, Lucifer magnificently turned around and became the favored one of the Lord of the Abyss, a model among demon kings, and the nemesis of the saint. In another world, he was infamous and stirred up the storm. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.