: There are 6 extras in total, corresponding to episodes 1, 2, 3, 4, 9, and 12.

: Unlike the main series, these were not officially aired on TV or streamed on platforms like Crunchyroll or Funimation. They remain exclusive to AbemaTV in Japan .

: These shorts provide additional depth to the main cast—Rikuo, Haru, Shinako, and Rou—filling in character headspace and everyday moments that build a stronger foundation for the story.