Stellar Affinity Cyaechosis (賽訶希絲)

Cyaechosis (賽訶希絲) is one of Stellar Affinity’s early crew introductions, appearing shortly after launch as part of the server-opening content wave. She is an ancient, scholarly presence on the ship — someone who has witnessed far more than her demeanor suggests, and who carries that weight with unsettling calm. Her official character profile describes her as a keeper of forbidden knowledge, someone who reads the stars not to predict the future but to understand what has already happened across too many worlds.

Romanizations vary across regional promotional materials. The Chinese name 賽訶希絲 is used in the official Facebook character intro video posted on 18 August 2026. All information below is sourced from the official character dossier and community play patterns verified across multiple regions.

Banner and availability

Fact	Detail
Introduction	August 2026 — server-opening content wave
Current availability	Permanent roster (verify in-client)
Archetype	Dark arcane support / control

Cyaechosis is a permanent roster addition, not a limited-time recruit. She was introduced during the same server-opening content wave that included Vera’s permanent unlock track. Check the current events page for the latest availability and any ongoing rate-up windows.

Stellar Affinity — Cyaechosis character intro and gameplay

Who Cyaechosis is for

Cyaechosis fills a specific role gap in rosters that lack a dark-element control or debuff support:

• Your best teams template needed a dark-element control support to cover a specific boss weakness.
• Story progression was blocked at a stage where enemies resisted your current elemental coverage.
• You wanted a character whose scholarly demeanor and mysterious background added narrative texture to the roster.

Skip or deprioritize when:

• Your roster already has sufficient dark-element coverage or control supports.
• Current content does not favor dark-element debuff strategies.
• Your gem floor is committed to a different upcoming banner target.

Combat role and archetype

Cyaechosis functions as a dark arcane support and control character. Her kit is built around debuff application, enemy weakening, and battlefield control through arcane means. The archetype is scholarly dark mage / forbidden knowledge keeper: controlled debuffs, enemy stat reduction, and a presence that makes opponents hesitate before acting.

For role wiring in team builds, treat her as a secondary support slot — her value is in making enemies weaker and easier to defeat, not in direct damage output. She creates conditions for carries to operate more effectively.

Artifact priority

Slot priority	Effect family	Rationale
First	Debuff / enemy stat reduction	Maximize her core support function
Second	Duration / field presence	Keep debuffs active across longer sequences
Third	Energy or cooldown	Maintain her arcane control flow

Build Cyaechosis as a support enabler, not a damage dealer. Her scholarly archetype sometimes misleads players into treating her as a passive buffer — resist that instinct. Her value is in weakening enemies systematically.

Bond priority

Cyaechosis’s affection track should be treated as support-tier priority once she joins your roster. As a dark arcane support, she benefits from thoughtful, consistent gift habits. Her bond flavor is quiet intensity, forbidden knowledge, and the kind of trust that builds slowly over time.

Route bond gifts to Cyaechosis when:

• Your carry needs debuff support to clear a specific dock wall or boss
• Current content has enemies with high defense or resistance that her debuffs can reduce
• Dark-element coverage is relevant to the current event or story chapter

Do not over-invest in Cyaechosis bonds at the expense of carry bonds when your carry is already stable. She scales with tactical need, not with raw affection power curves.

See Hime Bonds and Cumpanions for the affection system overview.

Team placement

Cyaechosis fits best in:

• Story clear build — debuff support slot, weaken enemies before carries engage
• Check-fight build — against bosses with high defense, resistance, or strong self-buffs where stripping or weakening enemy stats wins
• Extended encounter events — where sustained debuff uptime across long sequences matters more than burst damage

She is less suited for speed-clear compositions where the goal is ending encounters before enemy actions matter. In those scenarios, raw damage often outpaces debuff value.

For squad recipes, see best teams and team builds.

How she compares to other supports

Trait	Cyaechosis	Other supports
Element	Dark	Varies by character
Control profile	Debuff, enemy stat reduction	Varies by character
Personality	Scholarly, mysterious, calm	Varied
Team role	Dark control support	May include healing, damage, or buffs
Bond flavor	Quiet intensity, forbidden knowledge	Affection varies by character

Cyaechosis’s personality is defined by understatement — she does not announce herself, she simply is. That distinction matters for how her bond scenes read: she is not cold, she is simply accustomed to carrying weight alone.

Relationship with other characters

Cyaechosis’s relationship with the launch four-girl roster and later additions is not yet fully documented from public materials. Her scholarly background suggests potential connections to the ship’s historical archives and the broader mystery of the cross-world journey. Treat her as a standalone addition with unexplored narrative potential.

When to invest in Cyaechosis

Invest in Cyaechosis when:

• Your current support options lack dark-element debuff capability
• A specific dock wall or boss requires stripping enemy stats or applying sustained debuffs
• Extended encounter content makes sustained weakening more valuable than raw damage
• Her forbidden knowledge storyline becomes relevant

Do not invest when:

• Your current support roster already covers dark-element debuff adequately
• You are in a speed-clear phase where debuff is less valuable than raw damage
• Your gem floor is needed for a more impactful carry banner

Related pages

• Characters hub
• Tier list
• Best teams
• Team builds
• Vera — permanent unlock guide
• Hime Bonds — affection system
• Divine artifacts — artifact guide