the Tokyo metropolitan region; the area surrounding and including the capital of Japan in Eastern Tokyo

(idiomatic) A traditional Japanese meal, consisting of a bowl of soup and three side dishes (rice, pickles, etc.).

(zoology) polyandry

the best or top person, such as the best performer in a company, or a leading expert

three days ago

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds

World War I

a journey of a thousand miles begins with a single step

the famous of the “one hundred poems by one hundred poets” anthologies, compiled by Fujiwara no Teika in c. 1235, used in the basis of certain card games

Behind one general's glory lie the remains of countless unsung heroes. Lit. While one general reaches glory, ten thousand bones are decaying.