Unlike in sushi, where the rice is prepared with vinegar (and some sugar), the onigiri rice is only slightly salted. For the Japanese people, onigiri has the same role as sandwiches for the Western world, a filling meal, easily prepared and easy to carry around.
This autumn, between October 11 and November 30, a charity organization called Table for Two has launched a campaign called Onigiri Action, announcing that for every onigiri photo posted with the #OnigiriAction hashtag, it will donate 5 school meals to children in need. When I learned this (via RocketNews24) I was immediately compelled to publish an onigiri photo... When you share, don't forget the hashtag: #OnigiriAction.
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 55mm
Aperture: F/7.1
Shutter Speed: 1/1000s
ISO Sensitivity: ISO 400