A snowy winter day in the year 691 AD, Empress Wuzetian was in great mood, so she took her servants to the Upper Garden. When the snow stopped, Wuzetian saw pavilions, bridges and corridors here were covered with snow. Withered tree branches were very good looking when they were dressed up by snow and butterfly-like flakes on them would fall when touched by small birds. Suddenly, she saw a flower of fire-like red color standing upon the snowy ground. She then discovered it was the red plum ...