Yasui is upright.

Yaji is the solstice of winter. In ancient times, the winter solstice in the 24 solar terms was called the sub-year. The solstice in winter is considered as a big holiday in winter. In ancient times, people wandering in other places had to go home for the winter festival at this time, which was called "having a home at the end of the year". The saying that "the winter solstice is as big as a year" is widely circulated in some places in southern China. Winter solstice is also called "sub-year" and "off-year", which means that a year is coming, and winter solstice is very important. When the winter solstice arrives, the New Year is just around the corner, so the ancients thought that the winter solstice was as important as the New Year.