|Eye Color||Crimson Red|
|Alter Ego||Cure Guitarist|
Kotone is an energetic and boyish girl. She is good at any sports. However, she is afraid of ghost.
As a civilian, Kotone has red eyes and short to medium violet hair, part of which she ties up into twin tails. She normally dresses in a bright lavender t-shirt that is covered with violet jacket that has light violet as it's sub color, and denim shorts. On her feet are denim boots with heels.
- Hoshimiya Utau
- Utau is Kotone's childhood friend, and they always seen together.
- Kaori Nobara
- Kotone's eyes color is crimson red, which is Nobara's theme color, and vice versa.
- Shirano Fubuki
- Both have Symphony as their main mascot.
- Symphony is Kotone's main mascot, and gives powers to her.
"Emissary of beautiful moon shining at night! Cure Guitarist!"
Yoru ni kagayaku utsukushī tsuki no shisha! Kyua Gitarisuto!
Tsukishima (月島): Tsuki (月) means moon, while Shima (島) means island.
Kotone (琴音): Koto (琴) means Japanese harp, and Oto (音) means Sound.