In public, Mami appears to be a sweet and friendly person. Behind that persona, however, Mami has displayed sociopathic tendencies, such as conniving, manipulative, and petty behaviors, especially revolving around Kazuya and Chizuru.[4][8] When her friendly facade drops, her jealous and possessive feelings scare people around her. Despite not being involved with Kazuya anymore, she has gone out of her way to get more information about him and the girls he's with and attempt to pull them apart.[5