Fight with skills enhanced by Red Eyes and Penitence, use regular S3 Skullbuster to build both quickly, then unleash Serious Skullbuster when its conditions are met for heavy damage and ally healing. A self-sufficient Identity that performs consistently across teams.
Core Mechanics
Regular S3 — Skullbuster: Gains 7 Red Eyes and 7 Penitence on Coin Ⅰ hit. Coin Ⅱ grants 2 Penitence on Heads Hit, and Coin Ⅲ heals HP and SP for herself and allies (SP by the amount of Penitence above 10). At max SP, she gains +2 Clash Power and +1 Coin Power, and loses 15 SP after the attack.
Bonuses from Red Eyes and Penitence: S1 Both of You, Shut Up gains +1 Coin Power with at least 7 Red Eyes and +1/2 Clash Power with at least 7 Penitence. S2 S.H. / S.F. gains +1 Coin Power when Red Eyes and Penitence total at least 20/15, and +1 more if the target has at least 6 Bleed.
Gaining Red Eyes and Penitence: Gained on Coin hits of S1, S2, and her Defense skill. Effects that would grant Charge Count grant these instead (E.G.O Assimilation). Through the combat passive Spiderhead/Skullface (3 Lust and 3 Gloom Owned; unlocked at Uptie Ⅱ), Coins that grant Red Eyes or Penitence deal more damage based on each value, and she also gains Penitence when taking damage, up to 3.
Serious Skullbuster: S3 turns into this when Red Eyes and Penitence are each at 15 or more. It spends all of both, gaining +1 Coin Power per 5 Red Eyes and +1 Base Power per 5 Penitence, up to 4 each, and Coin Ⅲ gains +2.5/4% damage per point spent, up to 100/160%. It heals allies' HP and SP and inflicts 3 Bind and 2 Attack Power Down. She loses 15 SP after the attack.
How to Use
The regular S3 is strong even early on. Coin Ⅰ grants 7 Red Eyes and 7 Penitence, which alone meets S1's bonus conditions (7 or more each). S2's condition (20/15 total) cannot be reached with 14, and a single S3 meets it only at higher Uptie when Coin Ⅱ's Heads Hit adds 2 Penitence (16 total). Red Eyes and Penitence are gained on Coin hits, so choose opponents who will not break her Coins in Clashes. Once both reach 15, release them with the enhanced version. Spending everything means building up again, so it works well to aim for it with the second S3 cycle or save it for the finishing blow.
A practical guide based on the skill and passive descriptions below.(Updated: 2026-10-17)
SKILLSSkill
S1×3
Both of You, Shut Up
EnvyBlunt
Clash Power
4~123~11 → 4~12
Base Power
43 → 4
Coin Power
+4
No. of Coins
2
Skill Level
Identity Lv+1
Attack Weight
1
Coin Power +1 at 7+ Red Eyes
Clash Power +1/2 at 7+ Penitence
ⅠOn Hit Gain 3 Penitence
On Heads Hit Gain 1 Penitence
ⅡOn Hit Gain 2 Red Eyes
On Hit Inflict 1
Normal Coin Unbreakable CoinMultiple values represent different Uptie tiers; the larger value is for the highest tier. Roman numerals identify which Coin has the effect.
PASSIVESPassives
Combat Passive
E.G.O Assimilation
NoneAlways active
When gaining Count, gain Red Eyes or Penitence instead
- Red Eyes and Penitence are not affected by Potency
※Active while deployed in battle
Combat Passive
Spiderhead/Skullface
Lust ×3Gloom ×3Owned
When hitting an enemy with a Coin that grants Red Eyes
- Damage increases by (Red Eyes÷2)%
- If the target is 3+ Speed slower than this unit, damage increases by another (Red Eyes÷2)%
- If the target has , gain 1 Red Eyes (max 3 per 1 turn)
When hitting an enemy with a Coin that grants Penitence
- Damage increases by (Penitence÷2)%
- If the target has less SP than this unit, damage increases by another (Penitence÷2)% (targets without SP count as 0)
- If own SP is 20 or more, gain 1 Penitence (max 3 per 1 turn)
When taking damage from an enemy, gain 1 Penitence (max 3)
※Unlocked at Uptie Ⅱ; active while deployed in battle
Support Passive
Eat and Sleep
Envy ×3Resonance
At Combat Start
- The 1 ally with the lowest HP percentage heals 3 HP
- The 1 ally with the lowest SP percentage recovers 3 SP
※Unlocked at Uptie Ⅲ; active while on the team but not deployed
Red Eyes: When Red Eyes and Penitence reach 15 or more and S3 becomes Serious Skullbuster, it inflicts 3 Bind next turn, meeting the Plus Coin Drop condition. She also supplies Lust and Envy resources.
Red Eyes (Open): When Red Eyes and Penitence reach 15 or more and S3 becomes Serious Skullbuster, it inflicts 3 Bind and heals HP. She also supplies Lust and Envy resources.
×1
×2.0
×0.5
