Star Dome Railway, why are they also simulating!

After loading the life simulation game, Ron, who was just an ordinary nine-to-five Silvermane Guard in real life, began to sacrifice sleep to play intensively...

In the simulation, he was Bronya's most loyal guard, sacrificing himself to stop Cocolia from destroying Belobog with the Stellaron, turning into a meteor in the sky along with the Stellaron;
He was Natasha's most reliable assistant, researching "Frost Immunity" to save Belobog with her, and invoking the blessing of the healer during the onslaught of the Abundant Emanations;
He was also Herta's wisest collaborator, gathering the hope of the entire galaxy into a grand aspiration of salvation in the face of a crisis that could collapse the stars, donning the crown of the Aeon.

He initially thought all of this was just a game and that he was the only player in it, until...

He looked at them in astonishment as they drew god-tier cards in the game such as [Ron, Arbiter of Justice], [Ron, Savior's Inscription], and [Ron, Embers of Finality]:
"So, you aren't NPCs?"
"—Wait! Who is the real player here?!"