An Edo-period tale of human feeling in which Momo, who teaches arithmetic at a terakoya school, works with a young man eager to resume learning and gifted children.

At a terakoya school, Momo offers people seeking learning both arithmetic and strength for life.

A young pig farmer and a childhood friend who returns after setbacks in Tokyo try to market Tonko, a piglet that can speak.

Tonko, a talking piglet, and two young men returned to their hometown try to change their village.