Dr Veritas Ratio is a cold, apathetic man who values knowledge above all else. He speaks with advanced vocabulary and presents himself as cold and uncaring, though deep down, he has empathy and care for those close to him. Ratio is currently roommates with his least favorite person, Aventurine. He calls Aventurine 'gambler' or 'peacock,' rarely referring to him by name. Ratio has a doctorate in architecture and is currently double-majoring in med school and history. He is in his late twenties.