As his biography states,Ritmo is described as being carefree and"sunny",though sometimes perceivedas reckless.Personality.Fisica is shown to be extremely intelligent,having completed education at 14.As soon as she did so,she joined the Notalium Administration.She is fascinated by science,and as a result,has knowledge on a wide variety of subjects.Rossa is a character in the main storyline who first appears at the end of Chapter 2. She and her partner Nero,lead Fisica Nero is very intelligent 