Biography
Tsukihi Araragi (阿良々木 月火, Araragi Tsukihi) is the younger sister of both Koyomi Araragi and Karen Araragi, and the youngest member of the Araragi family. She is the younger half of the Tsuganoki Second Junior High School's Fire Sisters.
Biography text from Last.fm, available under CC BY-SA.