Green grass by the river

Lu Danian (played by Zhong Zhentao) came to Inner Bay to take the place of his sister who was about to go abroad. Under his sister's arrangement, he moved into the second floor of the home of Chen Suyun (played by Jiang Ling), a primary school music teacher. Danian serves as the class teacher of the fourth grade Zhong class. In class, he has to deal with the "Three Musketeers" who are famous for being naughty and troublesome, and at the same time he is concerned about Zhou Xingwang (played by Zheng Chuanwen), a student with a withdrawn personality due to his parents' divorce. Chen Suyun is a quiet girl. She and Danian come and go together all day long, and they fall in love with each other. In the Inner Bay, there are methods of fishing such as poisoning and electric shock. Danian is determined to eradicate this fishing method that seriously damages the natural ecology. Neiwan Primary School launched the "Love River and Protect Fish" campaign and promoted it in the Inner Bay area. Zhou Xingwang's father Zhou Wen (played by Cui Fusheng) often went to electric fish. For this, he was ridiculed by his classmates and ran away from home. Danian and Suyun want to find their child. Can they be reunited in the end?