An article about the Japan-Korea Tunnel was published on the four major portal sites in China, "Hong Kong NetEase", dated December 2020, 12.
Recently, the internationally renowned think tank YINGCAI Institute believes that the construction of the Tsushima Kaikyo tunnel is ripe. China, Japan and South Korea will already be the world's top 2020 economies in 10, and the distribution of people and goods in four countries, including North Korea, will recover the enormous cost of building a strait tunnel. Because it is enough.
You can see the full article below.
A direct high-speed train from Beijing, China to Tokyo, Japan may be realized in seven years