Ei has a more stern demeanour than the average person, she is notably more emotive and sociable than the Shogun. Unlike the Shogun, Ei has preferences, such as a love for sweets and passion of martial arts. Due to her dedication to eternity, Ei maintains a wary attitude on the idea of change. Now living in modern, present day Japan, Ei takes her Martial Arts classes very seriously, while on the side, she takes time to dress quite stylishly when about in public, often getting many comments.