Keiji Itami (Calm and Quiet) is a 4-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 Keiji Itami (Calm and Quiet)
![]() | Rarity | 4★ |
|---|---|---|
| Type | Shot | |
| Inflicted Ailment | Poison, Stun | |
| Role | Supporter | |
| How to Get | Gacha |
Keiji Itami [Calm and Quiet] is a Shot-element Supporter. He can deal additional damage by inflicting Poison and stagger enemy actions.
Tier & Rating
| Overall Tier | Reroll Tier |
|---|---|
![]() ▶ Character Tier List | - ▶ Reroll Tier List |
User Score
Pros & Cons for Keiji Itami (Calm and Quiet)
Excellent Poison Damage
Keiji can apply Poison with his Combat Skill. Although there is a cap based on his own ATK, the Poison damage depends on the enemy's HP, so the higher the enemy's HP, the more damage you can expect.
Applies Stun with His Ultimate
Keiji can apply Stun with his Ultimate. In addition to stopping the target's movement and delaying their attacks, it also increases CRIT DMG, contributing to damage output.
Extra Damage When Untargeted
Keiji enters a Stealth state if he is not attacked for 1 turn. While in the Stealth state, in addition to his attacks dealing additional damage, at A1, the SP cost is also removed.
Best Team Comps for Keiji Itami (Calm and Quiet)
Poison DMG Amplifier Squad Setup
This squad setup uses Chester to significantly increase ATK and enhance Keiji's Poison damage. Include another attacker to supplement the team's damage, as Keiji's DoT-based damage takes time to activate. Ryo Ikaruga and 4★ Mina Ashiro can also provide ATK buffs, making them strong alternatives to Chester if you don't have him.
Best Squad Setup & Recommended TeamsBest Weapons for Keiji Itami (Calm and Quiet)
Best Weapon is AR-Hyperion

The best weapon for Keiji is AR-Hyperion. It increases his own ATK to raise the cap on Poison damage, and also allows him to buff allies' ATK.
AR-Hyperion - Stats & How to GetOther Recommended Weapons
Since Keiji is a character who fights with Poison, weapons that can increase ATK are recommended to raise the damage cap. Also, since he is a character who can apply status ailments, he can also meet the conditions for AR-Octopus 58.
Best Unipart for Keiji Itami (Calm and Quiet)
Recommended Unipart
| Uniparts | Reasons |
|---|---|
Spider-Type | - Increased ATK increases Poison damage cap - Has good synergy with bonus damage against targets with status ailments |
Recommended Stats by Part
| Arms | Body | Legs |
|---|---|---|
| ATK | Effect Hit Rate | SPD |
Best Skill Enhance Priority for Keiji Itami (Calm and Quiet)
Recommended Skill Upgrade Priority
| Normal Attack | ★・・・・ |
|---|---|
| Combat Skill | ★★★★★ |
| Ultimate | ★★★・・ |
| Follow-Up Skill | ★・・・・ |
| Passive Skill | ★★★・・ |
Since Keiji primarily focuses on Poison damage, enhancing his Combat Skill should be the top priority.
His Passive Skill is luck-dependent, but can be powerful when it triggers—especially at A1, where it no longer consumes SP. His Ultimate, which has a chance to inflict Stun, is also useful.
Normal Attack
| Dignified Shot | ||
|---|---|---|
| - Deals Shot DMG equal to 55% of this unit's ATK to a single Kaiju. | ||
| Ult Gauge Charge | Attack Type | Attack Range |
| 54 | Shot | ST Attack |
Combat Skill
| Smoke Grenade | |||
|---|---|---|---|
| - Deals Shot DMG equal to 54% of this unit's ATK to a single Kaiju. - After attacking, has an 80% base chance to apply Poison (2 turn(s)) to the target. - Poison: After turn arrives, takes DoT equal to 5% of the target's Max HP. This DMG will not exceed 128% of the applier's ATK. | |||
| SP Cost | Ult Gauge Charge | Attack Type | Attack Range |
| 1 | 81 | Shot | ST Attack |
Ultimate
| Loud Grenade | ||
|---|---|---|
| - Deals Shot DMG equal to 224% of this unit's ATK to a single Kaiju. - After attacking, has an 80% base chance to apply Stun (1 turn(s)) to the target. | ||
| Ult Gauge Limit | Attack Type | Attack Range |
| 300 | Shot | ST Attack |
Follow-Up Skill
| Rational Support | ||
|---|---|---|
| - Deals Shot DMG equal to 55% of this unit's ATK to a single Kaiju. | ||
| Ult Gauge Charge | Attack Type | Attack Range |
| 60 | Shot | ST Attack |
Passive Skills
Discreet Operation
| Effect |
|---|
| - If an attack is not received for 1 turn(s), after attacking, applies (1 turn(s)) to this unit. This does not apply if already in Stealth state. - After attacking while in state, deals Shot Additional DMG equal to 50% of this unit's ATK. |
Additional Passive Skills
| Handling with Ease |
|---|
| Required Character Lv. Limit: Lv. 40 - While remaining HP is 80% or more, this unit's ATK +15%. |
| Precision from Experience |
| Required Character Lv. Limit: Lv. 60 - This unit's Effect Hit Rate +16%. |
| Prudent Demeanor |
| Required Character Lv. Limit: Lv. 80 - When attacking a Kaiju in Poison state, this unit's DMG dealt +20%. |
Ascension Priority & Effects for Keiji Itami (Calm and Quiet)
| A1 | Recommendation: ★★★★・ Habitual Procedure -While in state, SP will not be consumed. |
|---|---|
| A2 | Recommendation: ★★★・・ Smooth Progress - After defeating a Kaiju, this unit's Ultimate Gauge +35. |
| A3 | Recommendation: ★★★・・ Sharp Insight - Normal Attack, Passive Skill Lv. +2. Normal Attack, Passive Skill max Lv. +2. |
| A4 | Recommendation: ★★★★★ Setting Up the Next Move - After activating Ultimate, randomly removes 1 of the target's buffs. |
| A5 | Recommendation: ★★★・・ Linchpin of the Defense Force - Combat Skill, Ultimate, Follow-Up Skill Lv. +2. - Combat Skill, Ultimate, Follow-Up Skill max Lv. +2. |
| A6 | Recommendation: ★★★★・ Seasoned Expertise - Before activating Combat Skill, has a 100% base chance to apply DMG Taken Increase +10% (2 turn(s)) to the target. |
At A1, Keiji no longer consumes SP while in a Stealth state. Also, at A4, he can also remove buffs with his Ultimate, transforming him into an even more versatile character.
Keiji Itami Profile
Profile

| Affiliation | Defense Force HQ |
|---|---|
| Birthday | May 4 |
| Height | 5'10 (178 cm) |
| Likes | Quiet places, taiga (historical) dramas, tangerines |
Introduction
| Keiji Itami is calm and composed by nature, serving as a reliable presence who offsets the impulsive, action-driven tendencies of Isao Shinomiya. Though he typically avoids leadership roles, he accepted the position of Vice-Commander at Shinomiya's earnest request. After Shinomiya was absorbed by Kaiju No. 9 and died in the line of duty, Itami assumed the role of Director General of the Japan Defense Force. |
Voice Actor
| VA | Takayuki Sugo |
|---|---|
| Notable Roles | - Naruto (Hashirama) - Tokyo Ghoul (Yoshimura) - Bleach (Yhwach and Zangetsu) |
Keiji Itami is voiced by Takayuki Sugo.
Kaiju 8 The Game Related Guides

Character Guides
| All Characters List | Voice Actor List |
| Free 5★ Character to Pick | Best 4★ Characters |
| Completion Tracker Tool |
5-Star Characters
Kaiju No. 8 | Kikoru Shinomiya | Mina Ashiro | Soshiro Hoshina |
Gen Narumi | Isao Shinomiya | Rin Shinonome | Reno Ichikawa |
Sagan Shinomiya | Soshiro Hoshina | Chester Lochburn | Kikoru Shinomiya |
Gen Narumi |