This is a story of a robot who needs water to sustain his life. The robot was living storing water in the cup equipped with his body. One day, he spilled all of his water by falling down, because the cup didn't have cap. Then, he found red ball which was filled with water. Although he noticed a living thing was in it, he took all of water in the ball. The fish was deprived of its water and had difficulty in breathing. The robot saw the dying fish, and regretted what he did. Finally, he got the fish into water in his cup. He felt relieved to see the swimming fish.
There are indispensable things for each creatures to sustain their lives, so it is not allowable that human beings enjoy that privilege exclusively. We have to share limited nature with other living things. Many precious lives can be lost by human's selfish and greedy behavior.
