Shitakiri Suzume

(A tongue-cut spallow) Once upon a time, there were an old man and his wife. One day he came across a wounded sparrow. He brought the sparrow to his house and treated. So the sparrow was tamed by him.
But when he was out, the sparrow ate starch made by his wife. She got angry and cut the tongue of the sparrow. The sparrow wounded again, and fly away.

When he came back, he found that sparrow was lost. He seeked the sparrow thoroughout the mountains, and finally found the hidden kingdom of sparrow. Sparrows gave a warm reception to him. When he returned to his home, sparrows proposed him a present. They show two boxed, small and large, and told him to choose one. He chose small one, because he was old and couldn't carry much. After he came back, he found the box full of gold.

He was pleased, but his wife got angry, rebuked him saying why he had not chosen the bigger box. So she pump the location of the kingdom from him, and went there to get more gold. Though the sparrows tryied to give a warm reception to her, she rejected, and wanted only the last present. Bigger one, of course.
The bigger box was very heavy. She got tired on the way home, so took a rest, and opened the box. In the box was not gold, but a pride of grotesque monsters assaulting her.