Relationships
- Tenma Saki: Childhood friends and classmate. Ichika feels Saki is always smiling while Saki is glad Ichika is always there for her.
- Mochizuki Honami: Childhood friends, but their relationship became strained. Ichika thinks Honami is always nice to everyone, but Honami thinks Ichika can't always communicate well.
- Hinomori Shiho: Childhood friends, but their relationship became strained. Shiho currently doesn't want to talk to Ichika.
- Kiritani Haruka: Acquaintance and fellow classmate.
- Tenma Tsukasa: Acquaintances. They know each other because he is Saki's older brother. Ichika seems to think he is loud.
- Asahina Mafuyu: Acquaintances and fellow class representatives. They seem to know each other a little.
- Yoisaki Kanade: Acquaintances. They met each other in 'Intersecting Melodies, Glowing Warmth,' when both were reaching out for the last CD album in stock of a Miku song. Ichika and Kanade admire each others' hair, but don't tell the other.