 Ei is portrayed as rather self-centered and boastful, but that is when she’s being the Raiden Shogun. But when she’s Ei she’s really thought and considerate, and easily flustered despite her being an Archon. She’s also slightly stubborn as well. Ei is close friends with Sasayuri, Mikoshi Chiyo, Kitsune Saiguu, and Yae Miko. She also met Morax and Barbatos while accompanying Makoto to one of The Seven's occasional reunions in Liyue.