PT 3 So Earth was found and Rulers came to earth giving people powers to awaken them, but the rulers also came down and put themselves in a human body as fragments of light...
Yes... You guessed it: Gramps was one of them. And the reason Gramps died happy was because he knew that Shadow was back in theirside and has forgiven them.
Anyways, architectmade a deal with shadowfor himto be able to gain a body by creating a game; slowly making Jinwoo stronger.
When Jinwoo/Shadowkilled the architect, it was basically Shadowbetraying the the dark side/Monarchs.