オランピア

The sole girl of the White in existence.
A dancer who is able to make the sun shine and is called "Olympia".
She began her search for a husband on her eighteenth birthday.
She keeps a pet white mouse named Daifuku.

Her default real name is "Byakuya" (白夜, lit. "White Night").

In "Catharsis" she leads busy days, serving as a director of the letter bureau she founded and as a lecturer at the women's school. Together with her soulmate, she thinks about the future of the island.