Relationships[edit source]
- Hoshino Ichika: One of Saki's childhood friends, fellow bandmate and classmate in Saki's first year. Ichika was always there for Saki even when she was hospitalised for long periods of time. The two reformed their band with Honami and Shiho together, after Saki's return.
- Mochizuki Honami: One of Saki's childhood friends and fellow bandmate. Their relationship became strained before Saki's return in the main story, with Saki still wanting to be friends with Honami - whilst Honami, though glad of Saki's return, felt awkward around her.
- Hinomori Shiho: One of Saki's childhood friends, fellow bandmate and classmate in Saki's second year. Their relationship was strained before Saki's return in the main story, with Saki still wanting to be friends with Shiho - whilst Shiho had wished she would just leave her alone.
- Kiritani Haruka: Classmate in Saki's first year and a friend following the Miyamasuzaka Sports Festival.
- Momoi Airi: Airi is an idol who Saki likes and watched variety shows of whilst hospitalised. They later become friends whilst preparing gifts for Valentine's day whem Airi told Saki she could call her by her first name - now she was not just her fan, but her friend too.
- Hinomori Shizuku: The older sister of Saki's bandmate Shiho and someone Saki knew during her childhood.
- Aoyagi Toya: A childhood friend of both Saki and Tsukasa - their parents knowing one another due to their careers in classical music, specifically with the piano. Toya often gives plushies he wins from claw games at the arcade to Saki through Tsukasa.
- Tenma Tsukasa: Saki's older brother who always takes care of her when she needs it. He used to put on his own shows for Saki when they were kids in order to cheer her up.
- Otori Emu: Friends who participated in the Miyamasuzaka Sports Festival together, and classmates during Saki's second year. Saki comments that she reminds her of Tsukasa, despite not knowing the two are in a troupe together at the time. They both, along with Airi, made Valentine's treats for their groups together.
- Asahina Mafuyu: Saki's upperclassman who she participated in the Miyamasuzaka Sports Festival with.
- Akiyama Mizuki: Friends who met whilst Mizuki filled in for a part-time job shift in Minori's place. Mizuki attends the same school as Saki's older brother, Tsukasa.