Jina is learning about climate change for a class project, but her efforts to save energy at home (by turning off all appliances) just seem to inconvenience her parents, and frustrate them all.

Jina and her classmates are determined to collect the most food for the local food pantry so they can pick out books for the library -- but when a classmate's home is damaged in a fire, the class votes to donate much of the food they collected to his family instead.

Jina Jeong volunteers with her family to build houses, but when it falls short of her expectations, she eagerly seizes the opportunity to assist their neighbor in his yard, hoping it will fulfill her desire for a meaningful project.