Once upon a time, in a beautiful lake, there was a flying bird and a leisurely swimming fish. They were each other's natural enemies, but they had developed feelings for each other through their constant encounters and misses. Birds liked to fly in the sky to feel the freedom and beauty of the sky. Fish, on the other hand, enjoyed swimming in the water. They chased each other but could not cross the gap between species. One day, a bird accidentally fell into a lake while flying. Soaking in the water, he gradually adapted to life in the water. At the same time, the fish also discovered the existence of the bird and swam to him to help him. The birds and fish began to live together, sharing each other's food and water. Gradually, their relationship became deeper and deeper. However, they were still unable to cross the gap between species, which made them very distressed. One day, Flying Bird saw another flying bird in the sky. He felt very lonely and lost and flew into the sky. The fish felt very sad and helpless and swam to the sea. Flying Bird and Fish had been separated for a while, and their feelings for each other had deepened. They decided to cross the gap between species to find each other. They met in the sky, met in the ocean, and finally became a pair of happy lovers. Their story tells us that even across the gap between species, sincere feelings can overcome everything.