Nicknames: Hayacchi, Toro-chan (by Sakura), Toro-Cat, Cat-Girl (by the President), Demoness (by Sunomiya), Tororo (by Fujimin), Tororoimo (at Junior High).
Gender: Female.

She is a high school student who enjoys teasing and intimidating her Senpai, although she actually harbors strong feelings for him and he eventually becomes her boyfriend. Nagatoro is an energetic, athletic, popular, and somewhat sadistic girl, but deep down very sweet, often referred to as a "s dere".