There’s a whole demographic of “Homeless” Japanese youth who live and sleep solely in Internet Cafés, because it’s cheap to stay over night. Often it’s around 1000~2000 yen ($10-20 USD).
Japanese women would keep flushing continuously to mask the sound of them urinating and so devices were introduced which would keep producing the sound of flushing after activation in almost all the public restrooms.
The reason the US did not drop a nuclear bomb on Kyoto in 1945, even though it would have been an effective target, was because the Secretary of War honeymooned in the city and had fond memories of it.
In feudal Japan, merchants were the lowest class because unlike farmers and artisans, they don’t actually produce anything.
Japanese folklore contains a creature known as Ashiarai Yashiki, a giant foot that crashes through the roof in the middle of the night, demanding the terrified homeowner wash it.
In 1960, Japanese Socialist Party chairman Inejiro Asanuma was assassinated during a televised debate. With a Samurai sword.
Dancing in nightclubs is illegal in Japan.
Japan has over 50,000 people that are over 100 years old.
In Japan there is a family that has run the same hotel for nearly 1,300 years . . . or 46 generations.
Unless one counts the occupation of Japan by Allied forces, the four main Japanese islands have never been successfully invaded in human history.