All-purpose flour in Japan: what it's called and where to buy it
Japanese supermarkets mostly sell 薄力粉 (cake flour) and 強力粉 (bread flour). All-purpose flour, 中力粉, exists but is less common, so most people mix the two.
Look for this on the label
中力粉
chūrikiko · closest to all-purpose
薄力粉
hakurikiko · cake flour, low protein
強力粉
kyōrikiko · bread flour, high protein