Fina is one of the first post‑launch characters for Duet Night Abyss, and she is built to supercharge weapon damage teams rather than steal the spotlight as a solo carry. Her kit revolves around an elemental “tea party” field, Sanity‑draining uptime management, and a signature assault rifle that turns every bonus hit into more attack for the whole squad.
Fina release date and basic profile
| Detail | Value |
|---|---|
| Game | Duet Night Abyss |
| Platform release | October 28, 2025 (game global launch) |
| Fina release date | November 25, 2025 |
| Element | Lumino |
| Role | Support (offensive, weapon DMG focused) |
| Melee weapon type | Sword |
| Ranged weapon type | Assault Rifle |
| Birthplace | Hyperborean Empire |
| Birthday | April 2nd |
| Affiliation | Unaffiliated |
| EN voice actor | Shannon Tarbet |
| JP voice actor | 長縄まりあ |
| CN voice actor | 趙爽 |
| KR voice actor | 강은애 |
Fina joins the roster shortly after launch as a Lumino support. Her design sits between traditional buffer and “off‑DPS”: she pushes a main carry’s weapon damage much higher, and at higher Intron levels, she also becomes capable of dealing strong damage herself.
What Fina actually does in a team
Fina’s kit is built around three ideas:
- A Sanity‑draining elemental field that buffs weapon attacks.
- A stacking passive that turns time on the field into more damage for the whole squad.
- Weapon‑centric scaling that favors characters and builds focused on Weapon DMG rather than pure Skill DMG.
| Component | Function |
|---|---|
| "Let the Tea Party Begin!" (Ultimate) | Creates a Boisterous Tea Party field that drains Sanity over time, granting bonus elemental damage to Fina and allies and periodically hitting enemies in the area. |
| Tea Party “Guests” | Lets Fina cycle the field’s element: Nightingale (Hydro), Hound (Pyro), Unicorn (Electro), Butterfly (Anemo). Each element grants matching bonus elemental damage. |
| "On a Warm Afternoon" (Skill) | Short‑range Lumino hit that slows enemies; while the tea party is active it moves the field to Fina, increases its size, and boosts its damage. |
| "Bad Sorcerers Hate Sunlight!" (Passive) | Grants permanent Lumino DMG and generates Taleweaver Quill stacks when Fina uses her skill or keeps the tea party active. |
| Taleweaver Quill + "To Be Continued" | Each stack adds bonus damage for Fina and her allies; at Intron 2 the stack cap rises and the buff becomes significantly stronger. |
| "Advance, Poker Card Soldiers!" (Partner passive) | When Fina is a combat partner, increases Weapon DMG for characters proficient with Swords or Assault Rifles. |
In practice, Fina wants to:
- Deploy Boisterous Tea Party and keep it running as much as Sanity allows.
- Cycle the Tea Party Guests to match the team’s elements or a boss’s weakness.
- Regularly cast "On a Warm Afternoon" to relocate and amplify the field and rapidly stack Taleweaver Quill.
- Fight with her weapons instead of idling off‑screen; at higher Introns, her own Weapon DMG becomes a meaningful portion of total output.
Her main limitation is that she does almost nothing for characters who derive most of their output from Skill DMG and have weak or infrequent weapon hits. She also brings no healing or shielding of her own, so fragile carries will still need defensive support.
How strong is Fina in the current roster?
Fina is positioned as a top‑tier offensive support for Weapon DMG teams. The core advantages are:
- High offensive ceiling for weapons. Boisterous Tea Party adds bonus elemental damage on hit, while Taleweaver Quill and "To Be Continued" ramp up a broad damage increase that applies to Fina and allies.
- Teamwide PEN scaling at Intron 1. Targets that gain additional elemental damage from the Tea Party also gain increased penetration per bonus type, letting high‑end teams punch through defenses more effectively.
- Hard conversion into a DPS at Intron 6. During Boisterous Tea Party, every weapon hit Fina deals gains extra crit chance based on the target’s bonus effects and converts its elemental type to the enemy’s weakness. That lets her function as an on‑field carry if properly built.
Her primary weaknesses are just as clear:
- No defensive layer. Without healing, shielding, or mitigation in her kit, she cannot replace a healer in content that expects regular sustain.
- Sanity‑hungry playstyle. The more uptime you want on Boisterous Tea Party, the more you need to build around Sanity restoration and Skill Duration, both from Demon Wedges and weapons.
- Low value with Skill DMG carries. Pure Skill DMG specialists, who do little with their basic and charged attacks, will not benefit much from a weapon‑centric buffer like Fina.
Fina stats and scaling
Fina’s base stats emphasize survivability and range scaling rather than raw attack.
| Stat | Level 1 | Level 80 | Notes |
|---|---|---|---|
| ATK | 22 | 276.15 | Lower base than many DPS units; relies on buffs and Quill stacks. |
| HP | 105 | 1317.98 | Moderate base bulk for a support. |
| Shield | 105 | 1317.98 | Mirrors HP; no innate shielding skills. |
| DEF | 315 | 315 | Flat defense value; does not level‑scale here. |
| Max Sanity | 160 | 160 | High cap, important for long Tea Party uptime. |
| Skill DMG | 100% | 100% | Neutral multiplier; her value comes from buffs more than nukes. |
| Skill Range | 100% | 130% | Scaling makes her fields and skills more comfortable to use. |
| Skill Duration | 100% | 115% | Helps stretch Sanity further when stacked with gear. |
These numbers do not include bonuses from skill level‑ups, Demon Wedges, or weapons. In practice, proper build choices matter far more than her raw ATK line.
How to unlock Fina
There are three ways to get Fina: two permanent and one time‑limited around her release.
| Method | How it works | Notes |
|---|---|---|
| Secret Letter system | Spend 10 Secret Letter Clues to buy Fina’s Secret Letter, clear a Covert Commission, then open the letter for a chance at her Thought. Collect 30 Thoughts to unlock her. | Standard character acquisition loop; drops are not guaranteed per letter. |
| Premium currency purchase | In the pause‑menu Shop, buy Fina’s Thoughts directly with Phoxene Plumule, the premium currency. | Each Thought costs 150 Phoxene Plumule, letting you bypass RNG if you are willing to spend. |
| Immersive Theater (limited time) | During her debut Immersive Theater run, Fina’s Secret Letters and her weapon letters drop as stage rewards. These letters can award 2 or 10 Thoughts each. | Up to 65 Fina letters are obtainable in the event window, greatly accelerating progression toward 30 Thoughts and early Introns. |
Secret Letter Clues come from regular play and commissions, so anyone can eventually recruit Fina without spending. The Theater event front‑loads a large chunk of her and her weapon’s progress into the launch month, rewarding players who engage with the mode.
Recommended build concepts for Fina
Fina’s best builds lean heavily into Sanity sustain, Skill Duration, and weapon‑oriented offensive utility. A typical high‑end configuration looks like this:
| Slot | Piece | Key effect |
|---|---|---|
| Melee weapon | Remanent Reminiscence | Extends ATK range and restores Sanity on crits, helping keep Boisterous Tea Party active for longer. |
| Melee alternatives | Tetherlash / Pyrothirst | Provide large Skill Duration bonuses if Sanity restoration is covered elsewhere. |
| Ranged weapon | Dreamweaver's Feather | Boosts Skill Range and grants stacking team ATK when Lumino characters deal bonus damage. |
| Ranged alternatives | Arclight Apocalypses / Osteobreaker | More Skill Duration and random offensive buffs for allies. |
| Demon Wedge core | Rescue | Heals allies on Ultimate use and raises max Tolerance so more high‑cost wedges fit in one build. |
| Demon Wedges (support) | Prismatic Neon, Skylume • Midnight Sun, Wings • Inspo, Prime • Serenity | Crit‑oriented debuffing, Lumino/support staples, and teamwide Sanity restoration. |
| Demon Wedges (multiples) | Blaze • Eternity ×4 | ATK and Skill Duration stacking; equippable in multiples once each copy reaches +5. |
With this structure, Fina becomes a long‑uptime buffer whose field is large, long‑lasting, and constantly feeds Sanity and ATK into the team. When another support is already running Prime • Serenity, she can swap that slot to Prime • Uplift or another offensive wedge to avoid redundant healing and Tolerance conflicts.
Best teammates for Fina
Fina shines when paired with characters whose damage profile is heavily skewed toward Weapon DMG, especially Consonance Weapon users and weapon‑centric Umbro or Anemo DPS.
| Synergistic DPS | Why they work with Fina |
|---|---|
| Lynn | Consonance Weapon Pyro carry with constant Weapon DMG output; benefits strongly from Tea Party bonus elements and Weapon DMG buffs. |
| Psyche | Weapon+Skill hybrid whose Consonance Weapon still appreciates extra Weapon DMG and PEN. |
| Lisbell | Lumino Consonance DPS; stacks well with Dreamweaver’s Feather buffs and Lumino‑oriented wedges. |
| Outsider | Anemo Weapon DMG specialist; gains a lot from PEN and bonus elemental hits when sitting in Boisterous Tea Party. |
| Berenica | Umbro Consonance user; another strong Weapon DMG focus that converts Fina’s buffs directly into higher real damage. |
Phoxhunter is a natural support partner. While Fina handles elemental bonus damage and penetration, Phoxhunter layers on shields and extra Weapon DMG buffs, creating teams that both hit hard and shrug off bursts of incoming damage.
By contrast, characters that live on Skill DMG multipliers with low‑impact weapon strings will feel underwhelming next to Fina. They will not fully leverage her kit unless they are rebuilt toward a more weapon‑driven play pattern, which is usually a poor trade.
Intron levels that matter most
Fina’s power spikes are concentrated in specific Intron tiers.
| Intron | Impact |
|---|---|
| I1 | Tea Party targets that gain additional elemental damage also gain penetration per bonus type, turning her field into a serious defensive shred. |
| I2 | Raises the Taleweaver Quill cap to 45 and speeds up stacking, allowing larger and faster damage buffs for the team. |
| I3 | Skill level bumps ("On a Warm Afternoon" +2, "Bad Sorcerers Hate Sunlight!" +1) for extra stats but no new mechanics. |
| I4 | Each Quill stack now also scales Fina’s own Skill DMG and Skill Range, nudging her toward being more threatening personally. |
| I5 | Additional levels for "Let the Tea Party Begin!" and the main passive; again, pure stat growth. |
| I6 | During Boisterous Tea Party, Fina’s weapon hits gain massive crit chance per bonus effect on the target and convert to that target’s weakness element, turning her into a legitimate on‑field DPS. |
I1 and I2 are the main breakpoints for a pure support build, while I6 is the turning point if you want Fina to act as a primary carry. I3 and I5 are valuable, but purely as stat padding on top of those core mechanics.
Fina slots neatly into Duet Night Abyss’ early meta as a flexible, weapon‑first support with a clear identity: she is the character you reach for when your favorite DPS is built around holding the trigger down, not when they are spamming elaborate skill rotations. With a release on November 25, 2025, and a Theater event tailored around her, there is a wide window to grab her, build her, and see just how far a well‑set tea party can push a weapon‑centric team.
