Kotori is one of heroines of Rewrite and attends the same school as Kotarou. She is skilled at gardening and is able to sense supernatural things. She has a hyper personality, has been good friends with Kotarou since childhood, and does not have very many other friends. She has an extremely strong pet dog named Chibi-Moth that says "mosu mosu" as opposed to barking. In the past, Kotori used to have a formerly abused dog named Pero who had been badly mistreated, so he was unable to trust any human, including Kotori. She is a Druid and has made a commission with a plant familiar that maintains the planet's memories of humankind. Her parents die from a previous car accident, but Kotori turns them into familiars. In the past, Kotarou once confessed his feelings to her, but she rejected him.