ychara
JoJo: Golden Spirit
Back to homepage JoJo: Golden Spirit Chasing Kaleidorider Star Savior Dragon Traveler Star Sailors

Guide

Koichi Hirose

Join our Discord

Last updated: August 11, 2026

Koichi Hirose

Koichi Hirose

Special · Range 4
Special · Range 4 SSR
Rarity SSR
Fighting Style Special
Range 4
Overall Tier SS

Basic status (Lv.)

HP
263.9K (Lv.1: 15.2K)
ATK
20.4K (Lv.1: 1281)
DEF
7010 (Lv.1: 424)

Promotion Attributes

Attack Speed 30%
Crit Rate 14%
Crit Res Rate 0%
Crit Factor 200%
Crit Boost 900
Crit Res 0
Debuff Proficiency 2%
Resilience 0%
DMG Boost Rate 2%
DMG Reduction Rate 0%
Accuracy Rate 0%
Block Rate 5%
Block Strength 10%
Healing Bonus 0%
Healing Received Bonus 10%
Hit Rate 100%
Dodge Rate 0%
Effect Hit 0%
Effect Res 0%
PvP DMG Reduction 50%
Skill Charge Rate 30%
Ultimate
Smack

Smack

Applies Onomatopoeia to 1 ally in front at deployment. If no ally is in front or the unit is defeated, targets the ally with the highest Attack.
2 Increases Onomatopoeia 's damage per second to 220% of Attack and the final hit damage to 440% of Attack.
3 Increases Onomatopoeia 's damage per second to 240% of Attack and the final hit damage to 480% of Attack.
4 Increases Onomatopoeia 's damage per second to 260% of Attack and the final hit damage to 520% of Attack.
Skill
Onomatopoeia

Onomatopoeia

Deals damage equal to 120% 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 are for 3 seconds. Smack expires after Immobilizing an enemy. Smack placement prioritizes the direction of the enemy closest to Koichi Hirose. Cooldown: 14 seconds.
2 Reduces cooldown to 12 seconds. Increases damage to 160% of Attack.
3 Reduces cooldown to 10 seconds. Increases damage to 200% of Attack.
Passive 1
I Won't Forgive You!

I Won't Forgive You!

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 60% of Koichi Hirose's Attack to all enemies within 1 tiles.
2 Increases attribute bonuses to 15%, Onomatopoeia trigger chance to 55%, and additional damage to 80% of Koichi Hirose's Attack.
3 Increases attribute bonuses to 20%, Onomatopoeia trigger chance to 60%, and additional damage to 100% of Koichi Hirose's Attack.
Passive 2
Echoes ACT 2

Echoes ACT 2

Ultimate grants 2 stacks of Effect Hit Up to the target ally. When an ally with Onomatopoeia is defeated, immediately triggers Onomatopoeia, dealing damage equal to 440% of Koichi Hirose's Attack to all enemies within 2 tiles.
2 Increases damage to 480% of Attack.
3 Increases damage to 520% of Attack.
Passive 3
Body-Penetrating Sound

Body-Penetrating Sound

When Onomatopoeia deals damage, has a 10% base chance to inflict 1 stack of Attack Down and Spirit Influence to the target hit.
2 Increases trigger chance to 20%.
3 Increases trigger chance to 30%.

Recommended Dramatic Scene

The Taste of a Lie

The Taste of a Lie

Special units lean on status effects, and this set gives their debuffs a chance to land an extra stack.

2-Piece:Attack +5%

4-Piece:Attack +5%. When applying a debuff to an enemy, there is a 20% chance to apply an additional stack.

Recommended Badges

Keicho Nijimura Badge

Badge 1

Keicho Nijimura Badge

Only activates when equipped by a Ranged character. All attacks deal 2% more damage to debuffed enemies.

Koichi Hirose Badge

Badge 2

Koichi Hirose Badge

Only activates when equipped by a Ranged character. Casting any skill grants a stack of 1% skill damage bonus for 6 seconds, stacking up to 4 times.

Recommended Substats

Effect HitRanged DMGCrit Rate

Koichi is an SS SSR Special who turns allies into damage amplifiers via Onomatopoeia. Smack stamps a carry, Echoes ACT 2 buffs Effect Hit and revenge-blasts on ally death, and Body-Penetrating Sound adds Attack Down pressure. Special Attack procs from Onomatopoeia basics mean his value scales with whoever he buffs. Priority Special support-carry hybrid — build him when you have a strong attacker to stamp.