Kosaka

Kosaka is a young man who Kurokami no Otome first meets after tagging along with Higuchi and Hanuki to crash his going-away party.

Appearance
Kosaka has short black hair and wears glasses. He wears a yellow trailered vest with a shirt underneath. He also wears a black sleeve garter on both arms and finishes his look with a yellow bowtie.

Personality
Kosaka thinks in logical terms, claiming that someone should not marry into love, as love is illogical and leads to rash decisions, all while in woe that the girl he loves married someone else. Like Akagawa, he seems to be easily affected by alcohol.

Synopsis
Kosaka is going to study abroad in London after being rejected by Naoko-san. During the events of the night, he drinks through his sorrows to the point of sickness, eventually throwing up on Toudou-san's erotic prints, ruining them and causing Ri Haku to increase Toudou-san's debts. This leads to the drinking contest between Otome and Ri Haku.

Relationships

 * Naoko-san: was engaged to her but got rejected