umeboshi
Pickled ume fruits common in Japan. They are extremely sour and salty and are often served with rice or in onigiri.
Ume are a type of fruit sometimes called the Japanese or Chinese plum, but which are actually more closely related to the apricot.
Examples
See also
External links
This tag implicates fruit (learn more).

Pixiv
Twitter
Bluesky
Weibo
Lofter
Tumblr
