16 years ago
Ruiz was one of the Holy Knights who attempt to apprehend Escanor but failed due to the large man's greater power, leaving him injured. Ruiz was present in the court at nighttime where he and his fellow Holy Knights are surprised to see the arrested young man looking frail and skinny.
- 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.