Tsukuyomi is a young woman with a short hair of light purple color decorated with a white lily. Her hair completely covers her right eye. She wears a black school uniform with a long skirt, possibly from the same school as Byakuya.
Tsukuyomi was a kind young woman good with housework. She was very close with her brother and they often spent time together. She often tells to Byakuya how she is very proud how gentle and kind her younger brother is.
She hurried back to buy something she had forgotten. However, even after Byakuya had waited for half an hour she didn't come back. Byakuya searches for his sister and ends up walking straight into the Hollow Night. There he seeks for places Tsukuyomi might have visited, but without any results. Finally, he ends up in front of the bookstore and there Byakuya witnesses his sister's bloody corpse after being attacked by a Void.
- The name Tsukuyomi (月讀), which literally means "Moon Reader", comes from one of the three famous Shintou mythology gods.
|Playable Characters||Hyde · Linne · Waldstein · Carmine · Orie · Gordeau · Merkava · Vatista · Seth · Yuzuriha · Hilda · Chaos · Nanase · Byakuya · Phonon · Mika · Enkidu · Wagner|
|Non-Playable Characters||Adelheit · Azel · Chiharu · Chitose · Hiroha · Kaguya Seikaiguu · Komatsu · Kuon · Kuu · Lex Bartholomeus · Londrekia Light · Murayama · Ogre · Radiata · Reflecta· Roger · Sakurai · Silvaria · Strix · Tomomi · Tsukuyomi· Tsurugi · Uzuki · Zohar|
|Guest Characters||Eltnum · Akatsuki|
|Organizations||Night Blade · Licht Kreis · Amnesia · EFG · Demon Society · Ritter Schild|
|Terminology||Abyss · Autonomic Nerve · Curse Commandment · EXS · FLS · Hollow Night · Immortalize · In-Birth · Indulgence Weapons · Kanzakai · Re-Birth · Secret Arts · Vessel · Void · Zero Vessel|