The clear water and the blue sky.

When Qian Dabao, the village head of Shuanghai Village, was hosting a graduation banquet for his daughter, a food poisoning incident occurred. Dozens of villagers were hospitalized at once. The culprit behind the food poisoning turned out to be the Chinese cabbage irrigated with polluted water. It's a matter of life and death, but Qian Dabao refuses to believe this fact. Although there is only one factory in Shuanghai Village run by his younger brother Qian Erbao, he trusts his younger brother's words that the factory is equipped with sewage discharge equipment. However, Man Yihua, who contracted the reservoir for fish farming, has been keeping an eye on Qian Erbao's factory because the pollution is most evident in the reservoir. The price of her fish in the market has dropped so much that no one wants to buy them anymore.

Qian Dabao once saved Man Yihua's life, but she doesn't feel grateful. Not only does she not express gratitude, but she also thinks that Qian Dabao owes her something. Because she didn't want to live anymore and it was Qian Dabao's interference that saved her life. Therefore, Qian Dabao has to give way to her in everything. The relationship between the two is very special, naturally causing gossip among the villagers. When Man Yihua focuses on the sewage discharge from Qian Erbao's factory, it puts Qian Dabao in a very difficult position.