If there are no plants in the world

I am getting up in the Year of the Angels, but I am very different today. Mom and Dad brought oxygen bottles, and the flowers and plants at home disappeared. There were only fish and pork on the table. I asked my mother, "Why do you want to wear a spacesuit, do you want to be an astronaut? Why do you want to throw away the flowers? Do you want to train an environment without oxygen?" Mom said, "What is flowers and plants? I.. ...." I didn't wait for my mother to finish, I was faint...

Walking on the road, I found that the plants were gone, and everyone brought the oxygen bottle. When I arrived at the school, my classmates were pale. The teacher gave a lecture and said that one word said to breathe a few breaths. I also feel that I can't breathe slowly.

After school, I asked the classmates, most of the results are the same as moms. Only me and my two friends still remember that there are plants in the world. We all learned very strangely. From then on, we look for plants and staying day and night. People who remember plants have no plants in the world, and people who remember plants are rare.