Koichi Hirose in JoJo's Bizarre Adventure: Golden Spirit
Koichi Hirose is a SSR Special unit from Part 4 Diamond Is Unbreakable. The Stand plate reads Reverb Act 2. Community launch tier on this snapshot is S.
Stand plate
Koichi Hirose fights as Special from Part 4. Community letter on this snapshot is S. Read the skill list before you spend the first awakening materials on Reverb Act 2.
Captured stats
| Level | HP | Attack | Defense |
|---|---|---|---|
| Lv.20 | 6,304 | 492 | 182 |
| Lv.40 | 17,618 | 1,376 | 510 |
| Lv.60 | 35,399 | 2,765 | 1,025 |
| Lv.80 | 59,645 | 4,659 | 1,728 |
| Lv.100 | 90,356 | 7,060 | 2,617 |
Start energy 400 / max 1000. Crit rate 5%. These numbers come from the 15 August 2026 live-data snapshot. They move when the client patches.
Skills
Smack · Ultimate
Applies Onomatopoeia to 1 ally in front at deployment.
If no ally is in front or the ally is defeated, targets the ally with the highest Attack instead.
- Lv.2: Increases Onomatopoeia's damage per second to 290% of Attack and the final hit damage to 580% of Attack.
- Lv.3: Increases Onomatopoeia's damage per second to 300% of Attack and the final hit damage to 600% of Attack.
- Lv.4: Increases Onomatopoeia's damage per second to 320% of Attack and the final hit damage to 640% of Attack.
Onomatopoeia · Skill
3s
Deals damage equal to 400% of Attack to all enemies within 2 tiles around the target. Applies 1 ["Smack" Onomatopoeia words] within 2 tiles.
Enemies entering the 2-tile area around ["Smack" Onomatopoeia words] are Immobilized for 3 seconds.
Smack expires after Immobilized an enemy.
Smack placement prioritizes the direction of the enemy closest to Koichi Hirose. Cooldown: 14 seconds.
- Lv.2: Reduces cooldown to 12 seconds. Increases damage to 500% of Attack.
- Lv.3: Reduces cooldown to 10 seconds. Increases damage to 600% of Attack.
I Won't Forgive You! · Passive 1
Increases Attack and Max HP by 10%.
Special Attack: Basic attacks from allies with Onomatopoeia have a 50% chance to deal additional damage equal to 120% of Koichi Hirose's Attack to all enemies within 1 tile.
- Lv.2: Increases attribute bonuses to 15%, Onomatopoeia trigger chance to 55%, and additional damage to 140% of Koichi Hirose's Attack.
- Lv.3: Increases attribute bonuses to 20%, Onomatopoeia trigger chance to 60%, and additional damage to 160% of Koichi Hirose's Attack.
Reverb ACT 2 · Passive 2
Ultimate grants 2 stacks of
Attack Speed Up
to the target ally.
When an ally with Onomatopoeia is defeated, immediately triggers Onomatopoeia, dealing damage equal to 580% of Koichi Hirose's Attack to all enemies within 2 tiles.
- Lv.2: Increases damage to 600% of Attack.
- Lv.3: Increases damage to 640% of Attack.
Body-Penetrating Sound · Passive 3
When Onomatopoeia deals damage, has a 10% base chance to inflict 1 stack of
Attack Down
and
Spirit Influence
to the target hit.
- Lv.2: Increases trigger chance to 20%.
- Lv.3: Increases trigger chance to 30%.