藤堂 かさね

Kasane is a middle school student who is Tsumugi and Koyori's youngest sister. Cheery and playful, Kasane is best known for indulging in the rumor and gossip of the town, earning her the nickname "Fast ears". Kasane is a fellow schoolmate of Ayumu and is a good friend of his.

Edited from url=http://www.http://en.wikipedia.org/wiki/List_of_Hoshizora_e_Kakaru_Hashi_characters