In Tsumugi's mind, a radio broadcast that only she could hear was playing. Around this time, she reunited with Koyori, her childhood best friend. Prompted by the voice on the radio in her head, Tsumugi plans to make Koyori happy.
| Actor | Role |
|---|---|
 You HasegawaTsumugi Orihara | Tsumugi Orihara |
 Narumi YonezawaKoyori Tsunashima | Koyori Tsunashima |
 Shinichiro OsawaHikaru Kuroda | Hikaru Kuroda |
 Rinko KomiyaMariko Shibahara | Mariko Shibahara |
| MMai MoritomiRadio Voice | Radio Voice |
| TTomokazu YamaguchiRyo Dojima | Ryo Dojima |
 Yusuke NakayamaYutaro Itoi | Yutaro Itoi |
| YYumi MukaiPsychiatrist | Psychiatrist |
| TTaichi FujiiMaster | Master |
| KKazuma FujiwaraKaito | Kaito |