The story follows Liu Junhao, an orphan from a mountain village who happens upon a strange stone lock. Inside it is a peculiar space with a pool of spring water. The water has a unique property: fish placed in it grow rapidly and taste exceptionally delicious. Liu Junhao uses it to raise eels and grow vegetables, gradually building a thriving business and transforming his life. Along the way, he has many amusing adventures, from interacting with all kinds of adorable animals to dealing with everyday village troubles and relationships. He also finds a wonderful romance and settles into a peaceful, self-sufficient country life.
The novel has a fresh, charming style and does a fine job depicting rural scenery and the relationship between people and nature. It features all kinds of delicious food, cute animals, and amusing interactions, with well-drawn characters and a smooth, steady plot.