Demon: Starting by Conquering the Underworld

Synopsis: [Magic + Another World + Transmigration + Players + Villain = ?] The Underworld, birthplace of demons. It is home to an endless black sea and a desolate land covered in sand. This is the realm of demons! [Name: Galode (a low-ranking demon), Current Ability: Demonic Power] “So why did I become a demon after doing a good deed?!” This book was originally titled Galode’s Demon Notes. I’m terrible at writing synopses, so please head straight to the story!!!