Although Sakubo may seem at first to have a split personality, this is easily
explained by the mechanics of The World - the character is actually used by twin
siblings, with surprisingly different personalities. Bo, the quieter sibling,
looks up to Haseo with admiration and doesn't like to put himself forward. However,
the more dominant twin Saku dislikes the main character for reasons of her own,
and is often ready to be a thorn in his side whenever she can.
