Someone falls down from a tree and bleeds heavily. A man sees the accident but does not help the casualty. The man then goes to a laundry and meets himself from the past. The six-year old himself says that adults did a lot of bad things and "polluted" the world ... The man is under the tree again ...有人從樹上掉下來，血流如注。男子經過他的身旁，不但沒有伸出援手，反而用腳踢他。男子拿著衣服往洗衣店去，然後乘坐升降機，竟有一段神奇的經歷。他遇上來自過去時空的自己。六歲的他指出：成人幹了不少壞事而「污染」地球，這令世界變得灰暗。他希望回復到從前。男子在樹下出現，重遇那個受傷的人……
