Ruby is very shy and timid, which makes it hard for him to get along with other people. he has a tendency to utter or scream "Pigii!!!" when he doesn't like something; in the event he screams, his face will turn red as he does so. he has never talked to any females besides his mother before, so he has always been bad at dealing with the female gender. Although he is fearful and easily upset, he does has a tough interior forged by his role as the son of a rich, well-known family.