Omoiyari is the Japanese art of compassion. It is a form of selfless empathy and compassion. It is when you put yourself in their shoes. Japan uses Omoiyari as in their country; care, consideration, and kindness underpin all aspects of daily life in Japan.
The most important part is that they don't force anyone to do it it is simply their lifestyle. It is just about making others happy and comfortable, and as they say, "Make Others Happy, and you will be happy too"!