Topic hubs
Four editorial axes—urban investment, macro & policy, Tokyo life, and essays—mapped to featured series posts.
Urban investment insight
Tokyo offices, residential pricing, REITs, redevelopment, and rental yield vs capital gains.
- Investment 5 min read
Tokyo Office Vacancy Enters 2% Range: Supply Map and Pivots for 2026
Tokyo's central 5 wards are seeing the lowest vacancy rates since 2020. Based on the latest Miki Shoji data and the 'Flight to Quality' trend, we analyze the supply map of Chiyoda, Chuo, Minato, Shinjuku, and Shibuya.
- Investment 8 min read
Urban Mansion Prices per Tsubo: Chuo, Chiyoda, and Minato Compared
A framework to compare tsubo-level pricing across Chuo, Chiyoda, and Minato—plus holding-cost layers foreign buyers often miss.
- Investment 8 min read
Hotel REITs vs Office REITs: Which Recovered More After COVID?
Compare recovery paths for hotel ADR/occupancy versus office leasing through a J-REIT lens, including lags from rates, tourism, and earnings.
- Investment 8 min read
Nihonbashi Redevelopment Roadmap: Three Axes to Read Mitsui-Led Follow-On Projects
A reader's framework for Mitsui-aligned Nihonbashi pipelines—retail arcades, stations, resilience, and green space using public disclosures.
- Investment 8 min read
Rental Yield vs Capital Gain: Breakeven Thinking for Small Tokyo Investment Units
Lay surface yield, holding costs, tax, and rates on one sheet to separate cash-flow bets from price-appreciation bets on small Tokyo units.
Macro & policy (Korea–Japan)
FX, rates, cross-border tax and visa topics, corporate vs personal holding sketches.
- Investment 8 min read
Weak Yen and Korean Allocations to Japan: Three FX Scenarios
Simplify JPY/KRW/USD paths to stress-test Japan real assets, J-REITs, and cash for Korean investors.
- Investment 10 min read
Japan Rate-Hike Cycles and J-REITs: Three Historical Lessons
Generalize how policy rates, JGB curves, and credit spreads interacted with J-REIT valuations—avoiding single-line optimism or fear.
- Investment 4 min read
Japan-Korea Inheritance & Gift Tax: The '10-Year Rule' Trap
With top tax rates of 50% (Korea) and 55% (Japan), cross-border asset transfers are a high-stakes game. We analyze the 'Unlimited Taxpayer' status, the 10-year rule, and the upcoming Korean tax reforms for 2025-2028.
- Investment 4 min read
Japan Visa Routes: Permanent Residency, Business Manager, and J-Find
Japan is aggressively opening its doors to global talent and investors. We analyze the 2025/2026 immigration reforms, including the 30M JPY capital requirement for Business Managers and the 1-year fast-track PR route for Highly Skilled Professionals (HSP).
- Investment 5 min read
Japan Real Estate Tax Strategy: Corporate vs. Personal Ownership
Choosing the right ownership structure is the most critical decision after selecting the property. We compare progressive personal tax rates (up to 55%) vs. effective corporate tax rates (approx. 30-34%) and analyze the '5-year rule' for capital gains.
Tokyo life & local reports
Neighborhood walks, food markets, street DNA, community notes, and family-friendly picks.
- Local 6 min read
Nihonbashi to Hamacho: A Walking Guide Where Edo Pride Meets Modernity 2026
From the starting point of Japan's highways at Nihonbashi to the 'Craftsman City' of Hamacho. We explore the 2026 landscape of Tokyo's deepest charm, with practical tips on restaurants, prices, transport, and residential investment signals.
- Local 5 min read
The Two Hearts of Tokyo’s Morning: Tsukiji and Toyosu, 2026 Transformations
From the 80-year history of the Tsukiji Outer Market to the modern culinary hub of Toyosu Senkyaku Banrai. We provide a smart guide to exploring these areas as of 2026, focusing on both gastronomic experiences and the massive redevelopment projects underway.
- Local 7 min read
From Ginza to Marunouchi: A DNA Walking Guide to Tokyo's Wealth and Tradition 2026
From Ginza, boasting the highest land prices in Japan for 20 consecutive years, to Marunouchi, the heart of finance and business. We walk the 1.5km route where Tokyo's past and future intersect most vividly, with practical tips on transport, costs, and investment signals.
- Life 3 min read
Beyond Shin-Okubo: The New Map of Korea-Tokyo Communities & Business 2026
Tokyo’s Korean community has expanded beyond the geographical boundaries of Shin-Okubo. From the global elite networks in Azabu to the K-Startup hub in Toranomon, we provide an in-depth look at the evolving status and business bases of Koreans in Tokyo as of 2026.
- Local 5 min read
Intellectual Exploration with Kids in Tokyo: 2026 Edutainment Museum BEST 5
Tokyo is a massive laboratory and playground for children. From cutting-edge robotics to dinosaur fossils and immersive media art. We introduce five must-visit educational museums in Tokyo for families traveling in 2026.
Essays & investing philosophy
Personal notes on mindset, moving, volatility, reading two markets, and post-mortems.
- Essay 4 min read
The Aesthetics of Warm Investing: Where Cold Numbers Meet Human Warmth
Investing is ultimately proven by numbers, but those numbers are created by human decisions and the quality of relationships. We explain how GSF's 'Warm Investing' operates as a practical risk management framework, far beyond a simple slogan.
- Life 3 min read
Finding a Home in Tokyo: 2 Keys to Lease Contracts That Protect Your Rights
Rental contracts in Japan are very different from those in many other countries. From the distinction between 'Ordinary' and 'Fixed-term' leases to the strict rules on 'Restoration,' we provide a practical guide for foreign residents and investors.
- Investment 4 min read
3 Principles for Japan Real Estate Investors Amidst FX Volatility
Is the yen weakness ending, or is it the new normal? In 2026, with the USD/JPY fluctuating between 150-160 and the Bank of Japan shifting its policy, we present a strategic framework for managing currency risk and securing returns.
- Investment 5 min read
Seoul and Tokyo: Reading Two Markets as One Global Corridor
In 2026, the 'Japanification' of the Korean economy and the 'Revitalization' of the Japanese economy are intersecting. We analyze the structural supply shortages in Seoul and the global capital concentration in Tokyo to share strategic insights for cross-border asset allocation.
- Investment 4 min read
A Post-Mortem of Japan Real Estate Failures: 3 Lessons to Protect Your Capital
Failure stories are often more powerful than success stories. From the traps of subleasing to hidden maintenance spikes and tax audits, we analyze real-world investment failures to uncover the 'invisible risks' of the Japanese market.