[Quiz] Đố vui có thưởng - Kỳ II

Yakumo Yukari đã viết:"Well, that's not the end of the story. Nature maintains its balance by alternating through each sequence separately. In other words, each year we go from sun, to moon, to stars, to sun, to moon, and so on. At the same time, we go from spring, to summer, to fall, to winter... From fire, to water, to wood... Each class changes its attribute. What do you think happens then? You see the same combination once every sixty years."