Yeong-U Sin

Country: South Korea

Sin Yeong-U is the name of the main character in real life, while Greed is the in-game name.

He was an unlucky loser in life. He entered into debt to buy the gaming capsule needed to play the game Satisfy. He experienced a hard life and was forced into manual labor jobs to pay off the enormous debt, but he still played the game despite not being good at it.

His in-game character called Greed found unusual luck in a legendary class change item (Pagma's Rare Book) during an S-class quest. But hidden beneath that luck was his level dropping to -1. This was due to the legendary class change, and the failure of an SS rank quest by dying. He struggled to survive and made money in the world of Satisfy as the first negative leveled legendary class player.

(Source: Overgeared Wiki)