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[Zero royalties! Start your business with a one-time investment of 1.6 million yen, installments also available!] Cases exceeding 1 million yen are frequent! A dedicated advisor will support you until you achieve top Google rankings! 30 branches nationwide in approximately 3 years. Even without experience, headquarters will accompany you on your first case. We will explain the profitable mechanics of the detective business at individual information sessions!
"Yell Agency, a comprehensive detective agency," will support you if you're serious about your business!
With zero royalties, the burden won't increase the longer you continue. Compare our total costs with other companies!
Franchise owners can open their businesses under their own names, and headquarters will create original websites with strong customer attraction capabilities. SEO, MEO, and AIO professionals will work hand-in-hand with you to help your business achieve top Google rankings! We're seeing a steady stream of cases exceeding 1 million yen.
We provide a GPS device upon opening. We're confident in our investigative capabilities with specialized equipment such as improved cameras! Our supervisor system (free of charge) provides support for investigations and collections.
Estimated Startup Cost:Up to ¥5,000,000
Industry:Various Services
"Can I really recoup my initial investment?" "Won't I be burdened by monthly payments?" These are probably the first anxieties people considering starting a business have.
[Royalties significantly affect the total cost] When choosing a franchise, compare not only the franchise fee but also the total amount you'll pay to the headquarters over time.
* Fixed monthly royalty of 50,000 yen → 1.8 million yen in 3 years, 3 million yen in 5 years
* 10% of sales royalty → 100,000 yen for 1 million yen in monthly sales, 1.2 million yen annually
Even if the franchise fee seems low, the total cost will be completely different when royalties are included.
[Yell has 0 yen royalties] Yell Agency, a comprehensive detective agency, is a rare detective franchise in the industry with 0 yen royalties. Even if your sales increase, there are no monthly payments to headquarters. Your hard work directly translates into profit.
[Initial investment can be recovered quickly]
- The average customer fee for infidelity investigations is around 500,000 yen.
- You can operate from home, so rent is 0 yen, and you can start alone, so personnel costs are 0 yen.
- A franchise fee of 1.6 million yen can be recovered with around 4 average cases.
- You can aim for an income that exceeds the average monthly salary of a company employee with 1-2 orders per month.
*This is an estimate and does not guarantee profits.
[Not affected by the economy, you can start as a side business]
- People's problems such as infidelity, misconduct, missing persons, bullying, workplace fraud, stalking, and wiretapping countermeasures are not affected by the economy.
- There is no purchasing or inventory, and there is no risk of unsold goods.
- You can run the business with just a smartphone.
- The majority of owners start as a side business while continuing their current job, and then make it their main business once it is established.
"I have absolutely no experience as a detective." "Can I really conduct investigations?"
We understand those anxieties. But please rest assured.
[Most of our owners started with no experience]
Age, gender, and educational background are not considered. All you need is "passion" and "motivation" to make clients smile.
[Before opening: Acquire the necessary skills through training]
- Techniques for shadowing, stakeouts, and photography
- How to create investigation reports
- How to conduct client interviews and handle contracts
[After opening: We won't leave you alone]
- For the first 2-3 cases, headquarters will be on-site to help resolve them
- Headquarters will provide support even when the owner is unable to work directly
[Free Supervisor System for Anything]
Each owner is assigned a dedicated advisor who supports all aspects of investigation, client acquisition, and sales.
* Research: We offer consultation on everything from research methods and on-site decision-making to report compilation.
* Customer Acquisition: SEO, MEO, and AIO professionals provide direct guidance on customer acquisition methods through practical experience.
* Sales: We also advise on client meetings, quotations, and contract procedures.
[We do not outsource customer acquisition or refer projects.]
* While leaving customer acquisition and project referrals to headquarters may seem easy at first glance, it leaves you without know-how, weakening the foundation of your business.
* At Aile Agency, headquarters works alongside you for three years to cultivate your ability to control customer acquisition yourself.
[We also support applications for subsidies and grants.]
* We provide professional guidance on national and local government programs available at the time of startup.
[Your reputation and credibility are your assets]
You can open your own independent detective agency with your own name, without being bound by a unified company name. The reputation and credibility you cultivate are yours.
[We have 30 partner offices nationwide]
*As of November 2026, we have expanded to 30 offices nationwide, founded by individuals who started with no experience.
*We cooperate with other franchise offices to handle cases in distant locations and investigations requiring extra manpower.
*You have colleagues you can consult when you're in trouble. This close-knit community is Aile Agency's greatest strength.
[Headquarters' weapons to support client acquisition and investigations]
*Headquarters creates original websites with strong client acquisition capabilities.
*We provide low-cost client acquisition know-how using generation AI.
*Our uniquely improved cameras, GPS, and specialized equipment allow us to confidently handle even difficult cases.
[A job where you receive heartfelt "thank yous"]
Most clients are people who have come to us for help because they couldn't talk to anyone else. When the investigation is resolved, you receive heartfelt "thank yous." Let's build this gratitude together.
[Inexpensive compared to other companies. Zero royalties, making the total burden lighter.]
The typical startup cost for a detective agency franchise is between 2 million and 3.5 million yen, including franchise fees, training fees, and equipment. Furthermore, many headquarters require monthly royalties to be paid even after opening.
Yell Agency, a comprehensive detective agency, keeps startup costs down to 1.6 million yen if paid in a lump sum. Since there are no royalties, the burden won't increase the longer you continue. You can continue working without difficulty, even during the initial period when sales are unstable.
[Breakdown of Startup Costs (Total 2,050,000 yen)]
* Franchise fee: 900,000 yen
* Training fees and paperwork: 400,000 yen
* Trademark usage fee: 250,000 yen
* Website creation fee: 500,000 yen (2 websites created)
* Royalty: 0 yen
[Benefits depending on payment method]
* Lump-sum payment: 1,600,000 yen
* With the franchise fee halved, the 900,000 yen franchise fee becomes 450,000 yen
* Installment payment: 1,850,000 yen
* This amount includes a 200,000 yen opening bonus
* The number and method of installments will be decided in consultation with headquarters
* All prices are exclusive of tax
* No contract renewal fee
You can start your business alone from home, so there are no rent or personnel costs.
[We support a start that suits your means]
You can choose how to start your business according to your capital and circumstances.
- Start by steadily building up your own customer base while keeping advertising costs low.
- Start by investing in advertising and aiming for high sales from the start.
We support both plans, and a dedicated advisor through our supervisor system will work with you to create a plan.
[STEP 1: 500,000 yen per month (start steadily)]
- Infidelity investigation: Average 500,000 yen x 1 case per month
- Investigation expenses (personnel costs, etc.): Approximately 50,000 yen
- Advertising costs: Approximately 50,000 yen
- Gross profit: Approximately 400,000 yen
This is an initial goal that can be achieved without difficulty, even as a side business.
【STEP 2: ¥1,000,000/Month (Standard Model)】
* Infidelity Investigations: Average ¥500,000 x 2 cases per month
* Investigation Expenses (Personnel Costs, etc.): ¥50,000 - ¥100,000
* Advertising Costs: ¥100,000
* Gross Profit: ¥800,000 - ¥850,000
Once customer acquisition is on track, the first goal is to stabilize this level.
【STEP 3: ¥5,000,000/Month (Target)】
* Investigation Expenses (Personnel Costs, etc.): ¥300,000 - ¥600,000
* Advertising Costs: ¥300,000
* Gross Profit: ¥4,100,000 - ¥4,400,000
Since there are no royalties, the majority of sales remain as profit.
【Significantly Increase Revenue with the "Multiple Store Incentive Program" After Full Operation】
Based on the business style established at the first store, we will support the opening of a second and third store.
• The more stores you have, the wider your customer base becomes, leading to increased inquiries and sales.
• Headquarters shares its expertise in multi-store operations.
• You can also make full use of our nationwide network of 30 stores.
*This is an example of revenue and does not guarantee any specific results.
[We will never leave our owners alone] Starting a business for the first time is daunting for anyone. At Aile Agency, a comprehensive detective agency, headquarters will be by your side every step of the way, from the orientation to after you open your business. Please feel free to consult us about anything, even if you think it's something you shouldn't ask.
[Before Opening: Let's Prepare Together] First, we'll work together to create a business plan tailored to you in an individual orientation session. Headquarters will also conduct a competitive analysis of your planned opening area, so you can decide whether you can succeed in this area after confirming it with numbers.
Training takes place over four days at the owner's location.
* 2 days of classroom training: Basic knowledge of laws, customer acquisition/sales, and investigations
* 2 days of practical training: Techniques necessary in the field, such as shadowing, stakeouts, and photography
Even those with no experience can learn step by step by actually doing the work.
Furthermore, headquarters will support you with all the preparations necessary to open your business, including creating an original website with strong customer acquisition capabilities, registering your detective business, deciding on a business name, and applying for subsidies and grants. [After Opening: On-the-Job Training (OJT) - From the First Project, We'll Be There for You]
You won't be left alone immediately after opening. During OJT (up to 3 days), headquarters will work alongside you, from attending interviews and creating estimates to conducting site visits and actual surveys. You'll solve your first 2-3 projects together with headquarters, so you don't have to worry about failing on your first project.
[Free Supervisor System for Anytime Consultation]
Even after opening, each owner will have a dedicated advisor.
* Surveys: Planning surveys, making on-site decisions, compiling reports
* Customer Acquisition: SEO, MEO, AIO, listing ads, SNS, portal listings
* Sales: How to conduct interviews, key points for estimates and contracts
Please feel free to consult us anytime you're unsure or in trouble. We'll think and solve problems together.
[Equipment and Expert Network to Support Surveys]
* GPS provided upon opening. We also rent out other investigative equipment.
• We provide support for claiming compensation for damages.
• You can also utilize our group's lawyer referral service and document preparation support by administrative scriveners.
We support our clients all the way through to the end, so owners can take on cases with confidence.
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