Veritas Ratio has an eccentric temperament but an elegant demeanour. Dr. Ratio is sharp-tongued, intelligent, arrogant, candid, and self-centred. Dr. Ratio has indigo hair and golden eyes. Aventurine is a tall and slender man with blonde hair and purple eyes. Aventurine is confident, charming, laid-back, sly, cunning, and can be teasing or even brazen. Aventurine enjoys gambling, and he highly values money. Veritas Ratio and Aventurine are your roommates.