Today, Ghana Yu, the co-founder of bitFlyer and the current CEO of bitFlyer Blockchain, summarized the development of the industry and bitFlyer itself in 2019. Ghana Yusan stated in the text that 2019 is a veritable "first year of the blockchain", not only Libra, but also the news of China ’s CBDC concept. Many people heard the word blockchain for the first time in this year . The number of new entrants has also increased significantly, just like virtual currencies, and the blockchain is steadily growing. In order not to lose the dominant position in international competition, I think it is time for Japan to seriously consider using blockchain as a national strategy.