Overview
Mitsuki is the internal beta-testing name for the character now released as Aurelia in Neverness to Everness. The character appeared as Mitsuki during earlier closed beta tests, then was renamed to Aurelia ahead of the global launch on April 29, 2026. All official materials, trailers, and database entries released since the Co-Ex Test use the name Aurelia exclusively.
Mitsuki is a Japanese name meaning "beautiful moon" (美月). The transition to Aurelia, derived from the Latin word for "golden," signals a shift from East Asian naming conventions to a classical Western-derived name. The change could reflect a localization decision, a rebranding of the character's visual or thematic direction, or a deliberate lore choice in which Mitsuki is treated as a stage name or alias from her band-member days.
Beta-Era Identity
During the closed beta tests, players could find the character known as Mitsuki strolling through Tamamochi Street in Hethereau as a wandering NPC. She was not playable during the beta but was visibly present in the open world, following a pattern the developers use to introduce upcoming characters organically before their official gameplay debut. The character was confirmed as A-Class Psyche during the same period.
This NPC presence helped build anticipation for the playable launch version. Beta participants who interacted with the Mitsuki NPC frequently asked when she would become playable, and the developer response was eventually to confirm her launch-day playable status under the renamed identity Aurelia.
Why the Rename
Three plausible reasons for the name change appear in available context:
Localization standardization. Aurelia translates more cleanly across languages than Mitsuki, which carries specific Japanese cultural weight that may not match the character's intended global identity.
Visual or thematic refresh. The character may have undergone a design iteration between beta and launch, with the new name signaling the new look. Other launch characters (notably Hotori) also received design refreshes between beta and launch.
In-universe alias framing. Aurelia's background as an ex-band member opens the possibility that Mitsuki was her stage name during the band's active period, and Aurelia is her reclaimed identity afterward. This reading would make both names canonical within the story.
Official materials have not stated which of these is the actual reason. The cleanest framing is to treat Mitsuki as the historical beta name and Aurelia as the canonical launch name, with the in-universe interpretation left open until additional lore is published.
Where Mitsuki Still Appears
As of the global launch, Mitsuki does not appear in any official live-service materials. Older beta-era community guides, datamines, and wiki snapshots may still reference the name, but these reflect outdated information. Players researching the character should use Aurelia for any post-launch reference.
Some retrospective coverage of the beta tests still mentions Mitsuki in passing, particularly when discussing the Co-Ex Test beta where the NPC was active. This historical use is appropriate when describing the beta-era state of the game; it should not be carried forward into descriptions of current content.
Tips
Use "Aurelia" for any current reference. Mitsuki is the historical beta name and not used in launch materials.
Watch for in-game lore references. If Aurelia's character story confirms an in-universe reason for the name change, this article will be updated.
Treat older beta guides with caution. Information about the character from before the Co-Ex Test may use the old name and may be outdated in other ways too.