Komaki is Yukisada's classmate during their third year of junior-high school. During an accident when she was twelve, she lost both her parents and her older brother. Due to this, she turned very reserved and quiet. When she entered her third year of junior-high, she met Yukisada and little by little opened her heart to him. However, during summer vacation shortly after that school year began, her grandmother dies and she has to move away to a far distant relative's house. She is a very strange girl who says she was born on another planet and wants to go back. In school, she always gets top grades, and is on the track team at her school under the 200 meter dash event. Her favorite food is curry.