Chang Mei-Lan is an elementary schoolgirl who dislikes her parents and prefers to believe she is adopted.

She makes a deal with her best friend, Ah-Jie, to find their real parents in the city across the river. Will they succeed?

Mei-Lan's illiterate mother, Wu Bao-Mei, attends night classes at the community center, but she has not been finishing her homework on time. Can she deliver the assigned homework this time?