Dream Demon Reincarnation

It tells the story of the protagonist who went from being a depraved, lonely, and disgusting ordinary person to becoming a demon king, who experienced various stories and finally returned to adulthood. The protagonist is a friend of mine. I hope I can pray for him in this way. May he be well as I hope. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.