Qingxi Pond has drowned countless innocent souls of old customs. A pond contains the blood of old China, and a locust tree carries the soul of new mountains and rivers! The old locust trees support the new life of mountains and rivers! Shen Yanzhi wears a pocket watch to protect his family and country, and Gu Qingyuan teaches girls to read. From the hidden hatred of sinking guns to the sound of books under the locust trees, the Japanese army protects the school under the iron heel, and the sunken pond is destroyed in the shadow of feudalism. The old customs in Qingxi no longer harm people, and only the sound of books fills the stream. This pond finally turns the nightmare of "sinking pond" into the fragrance of locust flowers all over the village.
