Japan has recently shown interest in Web3, which is built around decentralized blockchain technologies, the metaverse, and NFTs. However, regulatory changes and tax updates are necessary for this momentum to lead to genuine progress. The NexTech Week trade show in Tokyo highlighted the opportunities and challenges in Web3 game development, with advice offered to overseas companies looking to expand in Japan. Japan's blockchain and Web3 space is relatively small, but events like Next Tech Week provide a great opportunity to meet the community and explore business opportunities. The Japanese government is continuously releasing press releases and white papers about the evolving environment, providing potential business opportunities. With Japan's large market, high GDP per capita, and well-recognized brands, there is huge potential for Japan to become a leading country in the Web3 space if it can bring these brands into a global environment via blockchain.