I'm Signing in at the Underworld

Others sign in in the earthly world, but I am in the underworld. Others sign in for the living people to see and show off to the living people. I sign in for the ghosts to see and show off to the ghosts to marvel. I am me, a different kind of fireworks, signing in the underworld and becoming the strongest existence here. Reform the management system here, I say one, no one dares to say two... Even in the human world, I can indirectly control it! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.