Karen Araragi

Karen Araragi (阿良々木あららぎ 火憐かれん, Araragi Karen) is a character from the Monogatari Series. She is Koyomi Araragi's sister, a student of Tsuganoki 2nd Middle School, a martial arts practitioner and one half of the Fire Sisters (ファイヤーシスターズ, Faiyā Shisutāzu), alongside Tsukihi Araragi. Later, she becomes a police officer, alongside her brother, though in a different department.