David Kvien, a 29-year-old Danish 3D artist from Tokyo, left Japan for Copenhagen on March 20 to attend to funeral arrangements for his father, who had passed away from a heart attack just a day before.

The flight he planned to take back to Japan coincided with the March 27 rollout of Japan’s ban on travelers from 18 European countries, including Denmark, in response to the rise of coronavirus infections mainly in Europe and the United States.

The coronavirus pandemic has prompted authorities worldwide to introduce entry restrictions on border traffic. But regulations in Japan have sparked a particularly strong reaction from its international community, as it is the only Group of Seven member denying entry to long-term and permanent residents and has set no clear criteria for their return.