Throughout the series, a red balloon indicates the presence of a member of the Union.
"R" stands for "Red". What's the "D"?
Red Destiny: That's what being commanded means.
Roger Smith: Death? Devil? Dark?
Red Destiny: Destiny!
Roger Smith: Destiny?
Red Destiny: Who commands YOU, Roger Smith?
Roger Smith: No one commands me!
Red Destiny: Then WHY do you pilot it?
Roger Smith: Are you talking about the Megadeus?
Red Destiny: They are the sacred chariots of ...
During the closing credits at the end of the first episode, Roger is shown sitting alone on a large hourglass. After R. Dorothy joins his household, subsequent episodes show them sitting together.