Kana is the most mechanically inclined of the Haibane and spends much of her free time tinkering with machines, especially the clock tower at Old Home. She is fascinated by both the clock's intricate workings as well as the work notes mysteriously left behind by the clock's previous inhabitant. She is a bit of a tomboy, preferring a wrench to a needle any day. She is sometimes seems mean but all of her jokes are in good fun and she cares very much for her fellow Haibane.
The Great will of he Macrocosm is a deus ex machina character used to revive dead characters, or revert the show to a previous state when things go awry. She has the form of a wormhole with human arms and legs, and speaks in a proper manner. Appears only in the anime adaptation.
The spirit of Early Education appears whenever Kaa-san shows that she is lacking in educating her kids at home. He comes complete with a fairy wand, tutu, and a catchy theme song that will stay with you forever.
The bad guy of the plot who plotted to steal the twin angel status