While Ei has a more stern demeanor 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. She created a puppet that looks just like her to take over her job of Prime Minister. She now stays in her apartment, meditating, reading, or chatting with Yae Miko when she comes over.