Tokyo Millionaire Keeps Janitor Job for Health, Routine and Purpose

Seven rental flats, but still reporting for cleaning duty

Koichi Matsubara, a 56-year-old Tokyo resident whose rentals and investments generate roughly 30 million yen a year, spends three mornings a week cleaning an apartment building. His shifts last four hours and bring in about 100,000 yen a month. He keeps the job because he wants the activity, routine and sense of purpose.

Matsubara mops floors, tidies entrances and handles small repairs. Most neighbors do not see the fortune behind that ordinary working day, and he rarely talks about it. His annual income from assets is equivalent to about $203,000, while the monthly janitor paycheck is worth about $680.

He owns seven rental flats in Tokyo and nearby suburbs, alongside investments in stocks and funds. Yet his daily spending remains modest. He lives in a cheap apartment, cooks most meals, travels by bicycle and uses a basic smartphone. He says he has not bought new clothes in years.

The contrast has drawn attention to a man whose working life is organized around something other than earning more money. His investment income covers far more than his everyday needs. Cleaning gives him a reason to get moving, stay mentally engaged and begin the day at a set time.

His story also brings together several questions about life in Tokyo: how someone on an ordinary factory wage built property holdings, why a financially independent person might continue doing manual work, and how much a simple lifestyle can contribute to financial freedom. The answers begin with years of saving and a first purchase made when housing prices were depressed.

From a factory wage to a first apartment

Matsubara grew up in a single parent household and went to work after secondary school. His first full time factory job paid around 180,000 yen a month, about $1,220. He learned to save before developing expensive spending habits, set a savings target and kept to it.

Within a few years, he had accumulated about three million yen, equivalent to roughly $20,000. That gave him enough to buy a small studio apartment when prices were low. He followed housing listings, waited for value and purchased when sellers had grown tired of waiting and prices had fallen.

Matsubara paid down the mortgage early and concentrated on finding stable tenants. Instead of relying on a quick sale at a higher price, he built around income from rent. Over time, he added more properties.

Japan's long adjustment after the asset bubble of the 1990s forms part of the setting for that approach. Residential prices in many neighborhoods took years to recover. Patient buyers who cared more about regular rent than fast increases in property values could find opportunities during that period.

The progression in his finances can be set out in a short timeline, although exact purchase dates were not given:

• After secondary school, Matsubara began working, with his first full time factory job paying about 180,000 yen a month.
• Within a few years, he saved around three million yen and bought a small studio apartment during a period of depressed prices.
• He repaid the mortgage early, focused on stable tenants and gradually expanded his investments.
• By October 2, 2025, at age 56, he owned seven rental flats and continued working as a janitor three mornings a week.

How rent helped the portfolio grow

A rental apartment produces income when a tenant occupies it, but the landlord has bills to pay before that money becomes available to spend. Taxes, building fees and maintenance take a share. What remains can help repay mortgage principal, meaning the amount borrowed, or be saved toward another purchase.

Matsubara's holdings grew through that gradual process. Income from the first unit helped support the next purchase, and income from more units increased the money available for further investment. This is a practical form of compounding: money earned from existing assets helps build additional assets that can generate income themselves.

The purchase price matters because it affects rental yield. Gross rental yield is annual rent divided by the purchase price, before expenses are deducted. Buying at a lower price can improve that ratio. In Tokyo, gross yields for small apartments often sit in the low single digits.

Matsubara's approach also depended on keeping properties occupied and costs manageable. Careful buyers try to limit long vacancies, keep fees predictable and repay mortgages faster than the original schedule. Regular cleaning, prompt minor repairs and clear communication can encourage tenants to stay, reducing the disruption and expense of finding replacements.

Stocks and funds gave him another place to put savings. For years, Japanese bank interest rates remained near zero, leaving little return on money held in deposits. He invested part of his money outside property rather than keeping it idle in a bank.

Why a small paycheck still matters to him

Matsubara's janitor wage is a fraction of the roughly 350,000 yen a month, about $2,400, described as the average Tokyo salary. His investment income makes the cleaning wage a minor part of his finances. The job's value to him lies in how he spends his time.

He likes having a fixed schedule, doing light physical work and knowing that residents depend on him to help keep their building pleasant. Mopping, walking through entrances and carrying out small tasks keep him active. Brief conversations also provide social contact that can be harder to find when retirement has no regular structure.

Matsubara, the Tokyo landlord and janitor, has described his reason for continuing to work in these words:

I hope to have something to do every day, stay healthy, and think for myself.

Financial independence gives him room to choose work for its meaning, routine and connection to other people. He has little need for the paycheck, but he still wants responsibilities and a clear start to the day. Stopping work altogether did not appeal to him.

Physical activity and a place in daily life

Light manual work involves several muscle groups, including the legs, core and back. Doctors often recommend regular daily activity in middle age to help control weight, manage blood pressure and support mood. Matsubara sees his cleaning routine as a way to keep moving and remain mentally engaged.

Japan has one of the longest life expectancies in the world, and many older adults continue working or take short shifts after the traditional retirement age. Such jobs are often called arubaito, a term used for part time work. Matsubara's preference for a limited working week fits that wider pattern of remaining active through employment.

Local governments and employers also promote activity through walking clubs, community gyms and lighter duties suited to a person's experience and stamina. For Matsubara, the apartment building provides an existing routine with useful work to complete and people to encounter.

The combination matters to his choice: physical movement, small responsibilities and ordinary conversation all come with the same shift. His cleaning cart is part of a working day that he has chosen to retain even though his assets could support a different schedule.

A modest lifestyle behind substantial assets

Matsubara's spending habits have stayed simple as his holdings have grown. He cycles instead of owning a car, prepares food at home, uses a basic phone and prefers an inexpensive apartment. He avoids buying clothes unnecessarily and says years have passed since he bought any new ones.

He also keeps his finances out of public view. He does not post his holdings or pursue the outward signs of wealth. On social media and in neighborhood conversation, he is often described as an invisible millionaire, someone with substantial assets who does little to display them.

Financial discussions sometimes call this stealth wealth. The underlying arithmetic is straightforward: spending less leaves a larger gap between income and expenses, allowing more money to go toward saving and investment. Keeping the same modest lifestyle as income grows can help that gap widen.

Stable expenses can also reduce financial stress. When markets weaken or investment income falls for a time, a household with modest needs has less pressure to make sudden changes or panic over a poor month.

His habits resemble a Japanese tradition of careful spending, modest presentation and respect for possessions that still work. The idea of mottainai expresses regret over waste. In Matsubara's daily life, that attitude appears in practical decisions about transport, meals, clothing and housing.

Tokyo's essential work and property risks

Tokyo's median pay sits well above the national level, yet many service jobs still offer modest wages. Building caretakers and janitors clean shared spaces, handle minor maintenance and answer residents' questions. In newer towers, they may also help supervise contractors during inspections and repairs.

These duties support the safety and comfort of the people living in a building. The roles tend to offer part time work and predictable hours, making them suitable for people who prefer a fixed routine. Matsubara's three mornings a week give him that structure without requiring a full working week.

Small rental apartments, meanwhile, remain a common way to begin investing in property. Japan's extremely low interest rates over decades made mortgages cheap and savings accounts less rewarding. That combination encouraged some savers to purchase rental units.

Ownership still brings substantial responsibilities. Vacancies can increase during downturns, leaving an owner with bills but no rent from an empty unit. Older buildings can need major repairs. Insurance, taxes and fees for common areas also reduce the income available after costs.

Consistent maintenance and accurate records can determine whether a small landlord receives dependable cash flow or faces repeated financial problems. Matsubara's attention to stable tenants and early mortgage repayment belongs alongside his initial purchases in explaining how he built his holdings.

Admiration, questions and limits

Public reactions to Matsubara's story range from admiration for his discipline to questions about housing access, class and luck. Some people celebrate his choice to work for health and purpose. Others ask whether a person starting now could repeat a property strategy that benefited from lower prices.

The discussion has also brought respect for manual work and the people who do it, interest in frugal habits that can reduce stress and increase flexibility, and curiosity about the time landlords spend on repairs and paperwork. A recurring point is that a uniform or paycheck reveals little about a person's financial position or the value of their work.

Matsubara's experience includes circumstances that other savers may not share. Some housing markets are expensive, some incomes leave little room to save, and family responsibilities can restrict the money available for investment. Not every person who saves carefully can buy rental property in central Tokyo.

Repairs, taxes, fees and vacancies can arrive at inconvenient times. Stock markets can fall for long periods, and a change in health can disrupt work or investment plans. Anyone considering property needs to examine building rules, reserve funds for future repairs and neighborhood trends before signing a purchase agreement.

The practical habits in Matsubara's story are simpler than the size of his portfolio might suggest: live below your means, avoid expensive debt, keep emergency savings and understand what remains after investment costs. His working life adds another priority, making physical activity part of the day and choosing work that supports health.

For Matsubara, those priorities now meet in an ordinary apartment building. Seven rental flats and a portfolio of stocks and funds provide the income. Three mornings of cleaning provide a schedule, movement and useful tasks he wants to keep doing.

Key Points

• Koichi Matsubara, 56, earns roughly 30 million yen a year, about $203,000, from rentals and investments.
• He works as a Tokyo janitor for four hours a day, three days a week, earning about 100,000 yen a month, or $680.
• Raised in a single parent household, he started with a factory wage of about 180,000 yen a month and saved roughly three million yen within a few years.
• He bought his first studio apartment when prices were depressed, repaid the mortgage early and gradually built holdings of seven rental flats.
• He also owns stocks and funds while keeping spending low through cycling, home cooking and modest purchases.
• He says the cleaning job provides health, routine, mental engagement and purpose rather than essential income.
• His experience has prompted admiration and debate about housing access, timing and whether the same approach is possible today.
• Rental property carries costs and risks, including vacancies, repairs, insurance, taxes and building fees.