According to this article by Bloomberg (and other sources), Tokyo is the safest city in the world! Japan has one of the lowest crime rates in the world. Walking home at night is generally safe, leaving your belongings on a cafe seat to save your spot when ordering is commonplace and it’s normal to have lost items left for you to return to them. Of course, there are always exceptions to this so better to err on the side of caution but in general, Japan is very safe.
The Japanese eat more fish than anyone in the world, around 17 million tonnes per year. More than 20% of protein obtained through a Japanese diet is derived from fish.
Japan has approximately 5.5 million vending machines, there is 1 vending machine per 12 people. Although you may think of vending machines as an unhealthy option, in Japan you’re spoiled for choice with options including green tea, hot coffee and corn soup. Although less common, vending machines in Japan can also contain ice cream, sandwiches, cigarettes, books, rice and (notoriously) used women’s underwear (you’d be hard-pressed to actually find this one though).