Rui is an easy-going genius. He's meticulous about making his empire the best it can be, making use of his flair for technology and inventiveness. He even builds new technology that can be in use of the empire. His somewhat unique way of thinking often gets him labeled as a weirdo as for a emperor. He is very peculiar in the fact that he’s not that strict and he is what people would call “silly” and playful.