Common Keys

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Common Keys (also called Universal Keys) are equipped on T-Dolls to provide stat boosts and extra effects. Unlike Fixed Keys (also called Exclusive Keys), Common Keys can be equipped on any T-Doll, even if they were unlocked as part of a specific T-Doll's enhancement.

Common Keys are obtained during events, by completing the Neural Helix of a T-Doll or by reaching Bond 5 with a T-Doll. They're equipped on the right side of the Key Regulation menu, while Fixed Keys are equipped on the left side..

List

From Events

Name	Event	Effects
Heavy Metal	Sojourners of the Glass Island - Hazard Patrol	Crit Rate +3% Attack Boost +3%
Rubber Pig	Sojourners of the Glass Island - Wasteland Impact	Attack Boost +3% Health Boost +3%
The Force of Bravery	Sojourners of the Glass Island - Event Shop (Part 1)	Crit Rate +3% Attack Boost +3%
Fortress Gatekeeper (Warden's Wall)	Sojourners of the Glass Island - Event Shop (Part 1)	Attack Boost +2% Defense Boost +2%
Pixie Cape (Snow Fairy's Cape)	Sojourners of the Glass Island - Event Shop (Part 2)	Attack Boost +3% Defense Boost +3%
Delicious Canned Herring (Yummy Canned Herring)	Sojourners of the Glass Island - Event Shop (Part 2)	Attack Boost +2% Health Boost +2%
Teddy Bear Costume	Rhapsody Quartet - Event Shop	Attack Boost +3% Health Boost +3%
Caramel Overload	Rhapsody Quartet - Event Shop	Attack Boost +2% Defense Boost +2%
Vibrant Tremolo	Amidst Wings of Gray - Event Shop	Crit Rate +3% Attack Boost +3%
Reverberating Melody	Amidst Wings of Gray - Event Shop	Attack Boost +2% Health Boost +2%
Almighty Wish Machine	Halting Station - Event Shop	Attack Boost +3% Health Boost +3%
The Best Sword in the Elmo	Halting Station - Event Shop	Crit Rate +2% Attack Boost +2%
Demon King's Scales	Simulation Exercise (Stage 4) in 2025-02	Attack Boost +3% Defense Boost +3%
Black Tea Breve	Zucchero Café - Event Shop	Crit Rate +3% Attack Boost +3%
Ice Velvet Latte	Zucchero Café - Event Shop	Attack Boost +2% Defense Boost +2%
Fragrant Protection	Zucchero Café - A+ Rank Mission	Attack Boost +3% Health Boost +3%
Trustworthy Leader	Simulation Exercise (2025/03/26 to 2025/04/09) - Stage 4	Attack Boost +3% Defense Boost +3%

From Neural Helix

Name	T-Doll	Effects
Essential Hot Beverages	Centaureissi	Health Boost +5.0% At the end of action, applies Heat Recovery to the closest allied unit without Heat Recovery. This effect has a 2-turn cooldown.
Shattering Stone and Silk	Daiyan	Crit Rate +5.0% At the start of the action, gains Movement Up I for 1 turn. This has a cooldown of 1 turn.
Artistic Inspiration	Dushevnaya	Attack Boost +5.0% For targets with mobility less than or equal to the user or that cannot move, increases Phase damage dealt by 10%.
Survival Instinct	Makiatto	Attack Boost +5.0% At the start of the action, if own HP is greater than 80%, reduces stability damage taken from attacks by 2 points. This can trigger at most once per turn.
All Seeing Eye	Mosin-Nagant	Attack Boost +5.0% When this unit is under the effects of Insight, increases damage dealt by 7%.
Brilliant Medal	Papasha	Attack Boost +5.0% Increases damage dealt by allied units' support skills (excluding self) by 10%. Can trigger at most once per turn.
All Points to Damage	Peritya	Crit Rate +5.0% If an active skill hits 2 or more enemy targets, damage dealt is increased by 7%.
Strategic Negotiation	Qiongjiu	Crit Rate +5.0% Increase damage dealt outside of the unit's own turn by 7%.
Hot Oil Protection	Sabrina	Defense Boost +5.0% When dealing targeted damage, applies Movement Down II to the target for 1 turn.
Mission's Blessing	Suomi	Defense Boost +5.0% When HP drops below 80%, restore 15% of this unit's maximum HP and gain Defense Up III for 2 turns. Can trigger only once per battle.
Afterglow	Tololo	Attack Boost +5.0% When Confectance Index is below max, increases damage dealt by 7%.
Mangle	Ullrid	Crit Rate +5.0% If the enemy target's HP is not full before the attack, increase damage dealt to them by 7%.
Heart Melting Strike	Vepley	Attack Boost +5.0% If the user's Mobility is greater than or equal to the target's, increases damage dealt by 7%.
Overengineered Invention	Cheeta	Attack Boost +3.0% When using an active heal, there is a 50% chance to apply 1 random buff to the target for 1 turn.
Fabricated Life	Colphne	Health Boost +3.0% Before using a single target active heal, cleanses 1 random debuff from the target.
Sustained Endurance	Groza	Health Boost +3.0% When Shelter is active, this unit is immune to displacement for 1 time. Has a cooldown of 1 turn.
Art of Violence	Krolik	Crit Rate +3.0% If under the effects of a Burn buff, gains immunity to Frozen and Frigid, and increases damage by 5%.
Blazing Inferno	Ksenia	Health Boost +3.0% When applying a Burn buff, there is a 50% chance to apply 1 additional buff to the target for 1 turn.
Vulnerability Exploit	Littara	Crit Rate +3.0% Damage dealt to targets with defense debuffs is increased by 7%.
Hunting Trap	Lotta	Attack Boost +3.0% Increase damage dealt against enemy targets with movement debuffs by 7%.
Veteran's Wisdom	Nagant	Attack Boost +3.0% If the target's stability index is lower than this unit's, increase damage dealt to them by 7%.
Blessing of the Morning Star	Nemesis	Attack Boost +3.0% When this unit is under the effects of Insight, gain 3 additional tiles of movement after killing an enemy target.
Opening Fireworks	Sharkry	Crit Rate +3.0% If the unit has more than 1 buff, increase damage dealt by 7%.

From Bond

Name	T-Doll	Effects
XX	Centaureissi	XX XX XX
Sweet Serenade	Daiyan	Crit DMG +3% Attack Boost +3% Health Boost +3%
Shining Memories	Dushevnaya	Crit Rate +3% Attack Boost 3% Health Boost +3%
Love So Sweet	Makiatto	Crit DMG +3% Attack Boost +3% Health Boost +3%
Heart of Gold	Mosin-Nagant	Crit Rate +3% Attack Boost +3% Health Boost +3%
Unbreakable Faith	Papasha	Attack Boost +3% Health Boost +3% Defense Boost +3%
Cat's Relaxation	Peritya	Crit Rate +3% Crit DMG +3% Attack Boost +3%
Warm as Jade	Qiongjiu	Crit DMG +3% Attack Boost +3% Health Boost +3%
Dessert Time	Sabrina	Attack Boost +3% Health Boost +3% Defense Boost +3%
Rock and Roll	Suomi	Attack Boost +3% Health Boost +3% Defense Boost +3%
Stardust's Whispers	Tololo	Crit DMG +3% Attack Boost +3% Health Boost +3%
Stress Ball Terminator	Ullrid	Crit DMG +3% Attack Boost +3% Health Boost +3%
Grand Debut	Vepley	Crit Rate +3% Crit DMG +3% Attack Boost +3%
Genius' Luck	Cheeta	Attack Boost +3% Health Boost +3% Defense Boost +3%
Healing Treatment	Colphne	Attack Boost +3% Health Boost +3% Defense Boost +3%
Midnight Reflection	Groza	Attack Boost +3% Health Boost +3% Defense Boost +3%
Scorching Protection	Krolik	Crit Rate +3% Attack Boost +3% Health Boost +3%
Making Money	Ksenia	Attack Boost +3% Health Boost +3% Defense Boost +3%
Scribbled Thoughts	Littara	Crit Rate +3% Attack Boost +3% Health Boost +3%
New Sprout	Lotta	Crit Rate +3% Attack Boost +3% Health Boost +3%
Hat Trick	Nagant	Attack Boost +3% Health Boost +3% Defense Boost +3%
Soft Whispers	Nemesis	Crit DMG +3% Attack Boost +3% Health Boost +3%
Idol's Determination	Sharkry	Crit DMG +3% Attack Boost +3% Health Boost +3%