Ruiz

is Twigo, Waillo, Kaide and Ibaya's father.

Trivia

 * Ruiz's catchphrase is "Not guilty!" (潔白, Keppaku)
 * Ruiz's name (ルイーズ, Ruīzu) is an anagram of Zurui (ズルイ, Zurui), meaning unfair. This also occurs in the case of his children's names.
 * Ruiz has at least fourteen children.