![](http://www.ecns.cn/hd/2021/01/12/07944af13f3040fdad3d2d3c180f35a8.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/eb98335343ed4e8a9169431e160afa17.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/8c07618f9e0a466ab2b70cfb51056b31.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/f3188694d00c40968220b7b3653232f6.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/33834eebbc09432ba3e5e8e37d9a42f7.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/149592d88109408eb21120d9712459fc.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/300a98b386414254882739b608779bdb.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.
![](http://www.ecns.cn/hd/2021/01/12/2a3fa36e329149a293b69929c491bfa7.jpg)
Kimono-clad Japanese youth wearing face masks attend their Coming of Age Day celebration ceremony at Yokohama Arena in Yokohama, Tokyo, Japan on Jan. 11, 2021. (Photo/Agencies)
Young men and women in masks celebrate the ceremony amid the coronavirus disease (COVID-19) outbreak in Yokohama, south of Tokyo on Monday.