Cid is a member of the Comodeen. A genius inventor, Cid can make anything, which includes the Wonderland Watch that Chobi wears, the Subway, and even a Submarine. He gives each of his inventions a woman's name and loves them dearly. However, due to his love for them, if they receive even the slightest scratch, his personality changes drastically, and he attacks the opponent in a rage. Normally, he is a pleasant young man who uses gentle and polite speech, even towards the kids Ai and Yu.