Rin Kagura is one of the main playable characters in Calling (game). She is in college, and is a responsible and confident person. Six years ago, when she was fifeen, while in a chatroom Rin made a promise to a user called "Kuroneko" to meet in person because she was lonely. Other people in the chatroom were teasing Kuroneko, but Rin told them to stop being mean to her, which left Kuroneko feeling grateful towards Rin and a little less lonely when she and Rin planned to meet up.