What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Like a Dragon: Infinite Wealth (Yakuza 8)

Koichi Adachi: Best Jobs and How to Unlock

Add to Watchlist

★ All Missables and One-Time Events
★ Shogi Puzzle Guide | How to Beat Metalworms
★ Photo Rally Locations | Honk Honk Locations
★ Best Weapons | Best Armor

Like a Dragon Infinite Wealth - Kaoichi Adachi Jobs

Koichi Adachi is one of the characters in Like a Dragon: Infinite Wealth (Yakuza 8). Learn more about the best job for Koichi Adachi, all their possible jobs, how to unlock the character, their specialty, and more!

List of Contents

Koichi Adachi Basic Information and Voice Actor

Koichi Adachi
Name Koichi Adachi
Voice Actor Akio Otsuka
Andrew Morgado (EN)
Unlock Conditions Chapter 1, 2, and 7 onwards
Exclusive Job(s) Detective
Specialty Hard-Boiled
Adachi has cultivated an iron will from his time on the force and cannot be silenced.
Resistances: Silence
Weaknesses: Charm

Best Job for Koichi Adachi

Samurai is the Overall Best

LAD Infinite Wealth - Samurai IconSamurai How to Unlock
Alo-Happy Tours:
Trolley Tour
Confidence Lv. 5 / $1600

Inherited Skills

Skill Name MP Lvl Description
Slick Tongue
(Detective)		 15 1 Adachi turned in his badge, but not his megaphone. High likelihood of making enemies rage, with a chance to lower their Attack.
Soul Capture
(Pyrodancer)		 20 1 Damages an enemy and absorbs their HP, applying your weapon's attributes.
Peppermill Blow
(Chef)		 20 1 Tenderize an enemy and season them to perfection, with a high chance to leave them blinded.
Flying Monkey Strike
(Action Star)		 20 10 An expert rush of blows which never misses and ignores the enemy's guard.
Cutlery Crash
(Chef)		 30 18 Throw things around like a celebrity chef who can no longer tolerate his line cooks' incompetence. High chance of causing bleed.

Koichi Adachi's overall best job is being a Samurai. All of its skills are good to use, and should be supplemented by Inherited skills from other Jobs.

Players should take time to build a bond with Adachi to unlock skill slots and inherit the skills above from the respective jobs compatible to Adachi.

Best Jobs and Skills for All Characters

All Koichi Adachi Jobs

Exclusive Jobs

Job Character Unlock Condition
Detective ImageDetective Koichi Adachi Initial Job (Chapter 1-2)

Generic Jobs

Job Character Unlock Condition
Aquanaut ImageAquanaut Male Diving Tour Activity
Req.: Kindness Lv. 1
Price: $0
Desperado ImageDesperado Male Water Gun Shootout
Req.: Style Lv. 5
Price: $1600
Samurai ImageSamurai Male Trolley Tour
Req.: Confidence Lv. 5
Price: $1600
Pyrodancer ImagePyrodancer Male Fire Dancing Exhibition
Req.: Passion Lv. 3
Price: $200
Action Star ImageAction Star Male Parasailing Experience
Req.: Charisma Lv. 4
Price: $200
Host ImageHost Male Unlocked in Chapter 8
Breaker ImageBreaker Male Unlocked in Chapter 8
Chef ImageChef Male Unlocked in Chapter 8
Linebacker ImageLinebacker Male Coconut Tasting (DLC Purchase)
Req.: Confidence Lv. 5
Price: $1600

Like a Dragon: Infinite Wealth (Yakuza 8) Related Guides

LAD IW - Characters Partial Banner

All Playable Characters and How to Unlock

All Playable Characters in Infinite Wealth

All Infinite Wealth Characters
Like a Dragon Infinite Wealth - Ichiban IconIchiban Kasuga Like a Dragon Infinite Wealth - Kiryu IconKazuma Kiryu LAD IW - Eric TomizawaEric Tomizawa
LAD IW - Chitose Fujinomiya IconChitose Fujinomiya Like a Dragon Infinite Wealth - Namba IconYu Nanba Like a Dragon Infinite Wealth - Adachi IconKoichi Adachi
LAD IW - Saeko Mukoda IconSaeko Mukoda Like a Dragon Infinite Wealth - Seonhee IconSeonhee Like a Dragon Infinite Wealth - Joongi IconJoongi Han
Like a Dragon Infinite Wealth - Tianyou IconTianyou Zhao

Comment

Post (0 Comments)

Author

Like a Dragon: Infinite Wealth (Yakuza 8) Walkthrough Team
This article was created by Game8's elite team of writers and gamers.
    Leave feedback(Login required)
    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey
    Not Now
    ×
    Please rate each item regarding Game8.co's Advertisements.
    Amount of Ads
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Placement of Ads
    Timing of Ad Display
    Ad Loading Speed
    Safeness of Ads
    Content of Ads
    ×
    Please rate each item regarding Game8.co's Quality of Articles.
    Amount of information
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Frequency of updates
    Speed of new information
    Accuracy of articles
    Understandibility of articles
    Readability of sentences
    ×
    Please rate each item regarding Game8.co's Usability of the Site.
    Ease of finding information
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Loading Speed
    Use of Color
    Font Size
    Visibility of Images
    Easy to Understand Layout
    ×
    Please rate each item regarding Game8.co's Message Boards, Comments.
    Ease of Writing
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Readability
    Ease in Finding Information
    Comment Quality
    Comment Quantity
    Admin Response
    ×
    Please rate each item regarding Game8.co's Site's new design.
    Please rate our site's new design
    Very Dissatisfied
    Somewhat Dissatisfied
    Fine
    Somewhat Satisfied
    Highly Satisfied
    Do you think that the website's design change makes the site easier to use?
    Has the new design made it easier for you to find information on the site?
    Has the new design improved the overall visual appeal of the site?
    How would you rate your overall satisfaction with the new design of the site?
    ×
    How likely are you to recommend Game8 to someone you know?
    Very Unlikely
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    Very Likely
    If you have other opinions regarding potential improvement to the website, please share them with us. We would appreciate your honest opinion.
    Note: This is a free response section, so you can proceed without entering anything.
    Note: Please be sure not to enter any kind of personal information into your response.
    ×
    Thank You
    ×
    Thank you for participating in our survey! Your answers will help us to improve the quality of our website and services.
    We hope you continue to make use of Game8.
    Close
    For other opinions or comments, go here.

    Rankings

    Popular Articles
    Message Board
    • We could not find the message board you were looking for.

    Gaming News

    Tides of Annihilation Gameplay Trailer Deep Dive: Dual Frontline System & More Analyzed

    Tides of Annihilation Gameplay Trailer Deep Dive: Dual Fr...

    Popular Games

    Recommended Games

    All rights reserved

    Ⓒ SEGA

    The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
    The contents we provide on this site were created personally by members of the Game8 editorial department.
    We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.

    Like a Dragon: Infinite Wealth (Yakuza 8) Walkthrough & Guides Wiki

    Quick Access
    Guide Index

    Popular Articles

    Game Mechanics & Combat

    Collectible & List Guides

    Strategy Guide Articles

    News & Info

    FAQs

    Main Story

    Substories

    Characters

    Food and Combo Meal

    Jobs

    Skills

    Weapons

    Weapons by Job

    Gear

    Accessories

    Items

    Item Types

    Sujimon

    Mini Games

    Dondoko Island

    Japanese Walkthrough