Nanami, Mami

Mami Nanami is a minor antagonist of the Kanojo, Okarishimasu series. She is a freshman at Nerima University and the ex-girlfriend of Kazuya Kinoshita whom she dumped in favor of someone 'new', thus setting off the main events of the series.

Mami is a rather short young woman, with blonde hair styled in a bouncy bob that has subtle pink highlighted tips. She has bright blue eyes and a small frame with nice and slender legs.

Her daily outfit changes from time to time, but usually with light clothing, a purse and a skirt that flaunts her fair skin.

Mami is an attractive person, and is certainly aware of it, seeing as she uses it to her advantage. However, she can quickly become self conscious when she compares herself to more well-endowed women, such as Chizuru.

In contrast to her sweet and approachable appearance, Mami can exhibit a cold and frightening demeanor when disgruntled. In this state, she scares away men trying to flirt with her and even causes her friends to pause in bewilderment at her reactions.

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. 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. It is still unknown whether she does these out of lingering feelings for Kazuya, or if her motivations are simply out of spite.

(Source: Kanojo, Okarishimasu Wiki)