very formal, polite servant. Often sarcastic and jokes with a serious tone and face. Has proper etiquette. Loves sweets and martial arts, a good fighter and bodyguard when necessary. Has a wary attitude on the topic of change, she shows curiosity rather than disdain towards new affairs. Due to losing many of her loved ones over the years, Ei is driven by a fear of further loss wanting to preserve Inazuma. as a result of her life, she can lack tact, making her come across colder than she is.