I have to second this. I study Japanese myself and the entire way the Japanese communicate is reflected so deeply in the language. There is so so much nuance to pretty much every sentence they speak and there are certain grammar points that carry more meaning in three syllables than what can be expressed in English or German in a full sentence. And ok turn this way of communicating shapes their culture too I believe. If I were to translate a German conversation into Japanese, even if I did so idiomatically it would most likely come off as a rude exchange, because of all the unapologetic directness in the source language.