As a member of the Sojutsu Club, Rei is a headstrong and reliable member of the group. She is very caring towards everyone, especially Takashi Komuro, and is easily one of the most kind-hearted members of the group, if not the most kind-hearted. Despite her combat abilities, Rei has a generally pacifistic personality, and seems to be the only member of the group who recognizes "them" as people- during the group's fight in Taiei Shopping Town, she states that, in spite of all they've been through