Joint accounts of Circle Twilight Dusk, consisting of Aikura siblings.

* Japanese name: 藍倉 真昼 (Aikura Mahiru)
** The older brother of the siblings, the circle leader and a writer
* Japanese name: 藍倉 秋夜 (the correct reading is unknown)
** NicoNico nickname: ぼんちり (Bonchiri)
** The little sister of the siblings and an artist
** Very old solo circle name: MtS
* Circle name: TWILIGHT DUSK
** Also known as: TD or 黄昏図書館
** Joint nicknames: 藍倉さん (Aikura-san) or 藍夜
aikura (twilight dusk)