Gen Narumi (Japan's Strongest Combatant) is a 5-Star character in Kaiju No. 8 The Game (K8 The Game). Learn about skill upgrade priority, best build, and team comps.
Table of Contents
Basic Info & Tier for Gen Narumi (Japan's Strongest Combatant)
![]() | Rarity | 5★ |
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Type | ![]() ![]() | |
Inflicted Ailment | - | |
Role | Attacker | |
How to Get | Gacha |
Gen Narumi [Japan's Strongest Combatant] is a Slash and Shot-type Attacker. His Combat Skill and Ultimate ability are both close-range strikes which makes him a powerhouse in skirmishes against packs of enemies.
Tier & Rating
Overall Tier | Reroll Tier |
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![]() ▶ Character Tier List | ![]() ▶ Reroll Tier List |
User Score
Pros & Cons for Gen Narumi (Japan's Strongest Combatant)
Versatile Dual-Element Attacker
Narumi wields both Slash and Shot elements, making him a valuable dual-element wielder. While both are physical types, his versatility shines in battles where enemies have high Physical RES, and this trait alone gives him an edge over characters wielding only a single element.
Strong in Multi-Enemy Encounters
Narumi's Combat Skill and Ultimate both target adjacent enemies. He has a wide attack range, and excels in mob battles where multiple small-sized Kaiju are lined up.
Effects Vary with Ultimate Gauge
Narumi's Passive Skill shifts depending on his Ultimate Gauge level. Below 50%, he gains a Speed buff which helps him act faster and charge his Ultimate gauge more quickly. Once the gauge hits 50% or higher, he receives a DMG Dealt buff when he uses his Combat Skill. This mechanic makes Narumi an easy-to-play character who can become increasingly more powerful as his Ultimate builds up.
Core Exposed Damage Specialist
Narumi's Combat Skill inflicts a Core Exposed status on Kaijus and advances his action order, letting him strike again sooner. Against core exposed enemies, he gains a DMG Dealt buff—making him a high-damage specialist who excels at creating and punishing vulnerabilities.
Best Team Comps for Gen Narumi (Japan's Strongest Combatant)
AoE Squad Setup for Small-Sized Kaiju
This squad is tailored for encounters with multiple small-sized Kaiju, making strong use of characters with Adjacent and AoE attacks to clear waves quickly. While the core setup runs three Attackers for maximum damage, swapping in a Supporter like Ryo can further enhance consistency and overall team performance.
Best Squad Setup & Recommended TeamsBest Weapons for Gen Narumi (Japan's Strongest Combatant)
Best Weapon is GS-3305

The best weapon for Narumi is his signature weapon, GS-3305. For Narumi, who deals high damage with his Ultimate, the Ultimate Gauge increase buff is a perfect match.
GS-3305 - Stats & How to GetOther Recommended Weapons
Besides his signature weapon, GS-Takamimusubi, which can be exchanged for rewards in the Fierce Battle Area, is recommended. It grants a buff when a Kaiju becomes a Core Exposed Kaiju, making it a good match for Narumi, who aims to create Core Exposed Kaiju.
Best Unipart for Gen Narumi (Japan's Strongest Combatant)
Recommended Unipart
Uniparts | Reasons |
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![]() | - Aim for high damage with Critical Hits - Enhance damage output with a buff before the Ultimate |
Recommended Stats by Part
Arms | Body | Legs |
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ATK | CRIT Rate CRIT DMG | Slash/Shot DMG Dealt |
Best Skill Enhance Priority for Gen Narumi (Japan's Strongest Combatant)
Recommended Skill Upgrade Priority
Normal Attack | ★★・・・ |
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Combat Skill | ★★★★・ |
Ultimate | ★★★★・ |
Follow-Up Skill | ★・・・・ |
Passive Skill | ★★★★★ |
Enhancing the excellent Passive Skill that constantly increases either SPD or DMG dealt is the top priority.
It's up to your preference whether to prioritize enhancing the Combat Skill or the Ultimate. Since A1 and A2 enhance things related to the Combat Skill, you should prioritize enhancing the Combat Skill if have higher Ascension Level. If you have his signature weapon "GS-3305," which increases the amount of Ultimate Gauge gained, it would be better to prioritize the Ultimate.
Normal Attack
Brilliant Strike | ||
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- Deals Slash DMG equal to 55% of this unit's ATK to a single Kaiju. | ||
Ult Gauge Charge | Attack Type | Attack Range |
54 | Slash | ST Attack |
Combat Skill
Squadron-Style Gunsword Technique Number One: Eruption Slash | |||
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- Deals Slash and Shot DMG equal to 90% of this unit's ATK to a single Kaiju. - Deals Slash and Shot DMG equal to 45% of this unit's ATK to adjacent Kaiju. | |||
SP Cost | Ult Gauge Charge | Attack Type | Attack Range |
1 | 81 | Slash Shot | Blast Attack |
Ultimate
Squadron-Style Gunsword Technique Number Two: Slash Salvo | ||
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- Deals Slash and Shot DMG equal to 159% of this unit's ATK to a single Kaiju. - Deals Slash and Shot DMG equal to 80% of this unit's ATK to adjacent Kaiju. | ||
Ult Gauge Limit | Attack Type | Attack Range |
300 | Slash Shot | Blast Attack |
Follow-Up Skill
Skyfall Strike | ||
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- Deals Slash DMG equal to 66% of this unit's ATK to a single Kaiju. | ||
Ult Gauge Charge | Attack Type | Attack Range |
60 | Slash | ST Attack |
Passive Skills
Way of the Strongest
Effect |
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- Before activating Combat Skill: 1. When this unit's Ultimate Gauge is less than 50%, applies SPD +9.6% (1 turn(s)) to this unit. 2. When this unit's Ultimate Gauge is 50% or more, applies DMG dealt +9.6% (1 turn(s)) to this unit. |
Additional Passive Skills
Ultimate Awakening |
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Required Character Lv. Limit: Lv. 40 - This unit's Ultimate DMG dealt +20%. |
Eyes on the Kaiju |
Required Character Lv. Limit: Lv. 60 - When attacking a Core Exposed Kaiju, this unit's DMG dealt +20%. |
Unmatched Speed |
Required Character Lv. Limit: Lv. 80 - When causing a Kaiju to become Core Exposed by Combat Skill, advances this unit's next Action Order by 20%. |
Ascension Priority & Effects for Gen Narumi (Japan's Strongest Combatant)
A1 | Recommendation: ★★★★・ Brilliant Combat - This unit's Combat Skill DMG dealt +20%. |
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A2 | Recommendation: ★★★★★ Unstoppable Advantage - After activating Combat Skill, applies CRIT Rate +10% to this unit. Max 3 stack(s). |
A3 | Recommendation: ★★★・・ Will to Surpass the Wall - Normal Attack, Combat Skill Lv. +2. - Normal Attack, Combat Skill max Lv. +2. |
A4 | Recommendation: ★★★・・ Greater Advancement - After defeating a Kaiju, this unit's Ultimate Gauge +45. |
A5 | Recommendation: ★★★・・ Strength Comes First - Ultimate, Passive Skill, Follow-Up Skill Lv. +2. - Ultimate, Passive Skill, Follow-Up Skill max Lv. +2. |
A6 | Recommendation: ★★★★★ The Essence of His Genius - After activating Combat Skill, applies Combat Skill DMG Multiplier +5% to this unit. Max 3 stack(s). |
Many of Narumi's Ascension effects are directly related to his damage. His A2 effect is particularly a user-friendly effect that can increase CRIT Rate, so if you use him, it's recommended to aim for at least A2.
Gen Narumi Profile
Profile

Affiliation | First Division |
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Birthday | 12/28 |
Height | 5'9 (175 cm) |
Likes | Video games, online shopping, egosurfing, freedom, narrow spaces |
Introduction
Gen Narumi is the Captain of the Japan Defense Force's First Division. Despite his title, he approaches work with a strikingly lackadaisical attitude. His office is a chaotic mess of personal items, and he's a chronic offender when it comes to tardiness and slacking off. Yet despite his carefree demeanor, he remains captain for one undeniable reason: he is Japan's most formidable anti-Kaiju combatant. |
Voice Actor
VA | Koki Uchiyama |
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Notable Roles | - Hunter x Hunter (Meruem) - Jujutsu Kaisen (Toge) - My Hero Academia (Tomura) |
Gen Narumi is voiced by Koki Uchiyama.
Kaiju 8 The Game Related Guides

Character Guides
5-Star Characters
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