Educated youth, the north wind blows, time flies, passionate youth, karma, love in ice and snow, tree rings, yesterday's news, blizzard tonight, behind love, looking back on the yellow land, and youth-related days. Heavenly bath, the third year of life, tree rings, our educated youth era, forgiveness, those fascinating past events, the age we lived in, the memories of winter, a beautiful life, ginkgo falling and so on.