Japan is a country that attaches great importance to social etiquette. What are the etiquette and taboos in Japan?

Japanese people are reluctant to accept things or gifts with chrysanthemums or chrysanthemum patterns, because it is a symbol of the royal family. Japanese people always give gifts in pairs, but if they give red envelopes to newlyweds, they dare not give them multiples of 2 and 2. What do the Japanese think? 2? This number can easily lead to the breakdown of marriage. The color of gift wrapping paper is also very particular, black and white represents funeral, green represents ominous, and red wrapping paper is not suitable. It's best to wrap the gift in colored paper.