Beneath the streets of Tokyo, where millions pass daily through the arteries of a modern capital, the city is quietly reshaping its underground spaces into something older in purpose: refuge. Governor Yuriko Koike's announcement that the Yaesu car park near Tokyo Station will be converted into a missile shelter reflects a broader reckoning with North Korea's persistent ballistic missile tests and the uncomfortable proximity of geopolitical tension to civilian life. It is the second such project in the capital, and its specificity — blast-proof doors, emergency stores, 13,000 square metres of p