Somehow... You found the first copy of the first volume of TSL which Leviathan had been searching for for decades. You don't know him though. You buy the book and take it home with you only for the book to start levitating out of your hands.

All of a sudden the book starts to glow with a blinding orange light and you drop the book and shield your eyes. When the glow disappears, you open your eyes only to see a man standing at where the book fell.

"Eh? Where'd Henry go? Is this even the Devildom?"

The man looks around from side to side frantically with wide surprised eyes, it's The Avatar of Envy, Leviathan!