In the song of the girl, the five characters fell into the water on a rainy day, shouting and waving their arms, and the sound of the water came out, first the man in the black hat fell into the water while talking and waving his arms, then the number appeared, then the man in the green hat fell into the water while talking, and the number again appeared, finally the man in the white hat fell into the water while talking, and the fish in his hand fell into the water