Introduction We are entering a new era of decentralized internet—Web3—driven by advancements such as blockchain-based payment networks and tokenized ecosystems. While this era can feel exciting and full of promise, it also raises key concerns: can the next phase of decentralized internet become a sustainable part of our social infrastructure? Over the course of this […]

Masahiro Ohba has joined the firm and is currently working at our Akasaka Office.

1. Introduction: What is a Digital Asset Treasury Strategy? A digital asset treasury (“DAT”) strategy refers to a company’s approach to holding and managing digital assets (often referred to as “crypto assets” in Japan) as part of its corporate balance sheet. It incorporates digital assets into the portfolio as an alternative to, or complement to, […]

In this article, we will introduce AI agents, which have been gaining popularity since 2025, by explaining (1) what an AI agent is, (2) what Web3 AI agents are, and (3) the legal issues surrounding AI agents. Because AI agents can take over any job, when considering the relationship between AI agents and the law, […]

I. Introduction As the price of cryptocurrencies rises, Bitcoin has established itself as “digital gold.”Bitcoin and stablecoins are rapidly becoming popular for everyday payments, particularly in South America and Africa, where financial infrastructure is insufficient. For example, in El Salvador, Bitcoin has been adopted as legal tender and is also used for tax payments and […]

I. Introduction Recently, I visited the “Flying Car Station” at the Osaka Kansai Expo and experienced the flying car exhibits. (Reference: https://www.expo2025.or.jp/future-index/smart-mobility/advanced-air-mobility / ) Figure1: A realistic flying car While the pavilion is open to visitors without reservations, those who make a reservation in advance can board a parked flying car and experience a video […]