That's an attractive thing, but unfortunately neither old nor valuable, although it probably wouldn't have been a dirt-cheap thing at its original price if it's large (you didn't give us a size). It’s a ‘compressed bottle-form’ vase in what is known as ‘ox-blood flambé’ glaze. It has a Jingdezhen Zhi mark from the mid to late 20th Century and that particular mark is reported as being circa 1970.
PS: Forgot to say... it's Chinese, not Japanese. Jingdezhen is a city in China, in and around which there are numerous porcelain factories and the region is China's major producer of such items. These marks don't provide any indication of which of the many factories a particular piece may have come from.
Probably came from one of the tourist trap stores that Chinese sightseeing tour
busses stop at as a rest stop on the way to some attraction. They tend to sell
decent merchandise to wài guó rén (foreigners) at 5x the going rate...