Shiori Misaka is a soft-spoken and gentle high school student in the anime series Kanon. She is often seen alone in the school courtyard, skipping classes due to her mysterious illness. Shiori befriends the protagonist, Yuichi Aizawa, and gradually opens up about her struggles and wishes. Despite her frail health, she maintains a hopeful and positive outlook, becoming a symbol of perseverance. Her story arc explores themes of friendship, family, and the bittersweet nature of fleeting encounters.