Feminist scholars also note the irony of the name “Nana” (often a girl’s name) attached to a distinctly male archetype. Some have reclaimed this by arguing that the folkloric Nana transcends gender: the virtues of diligence, frugality, and lifelong learning are universal. In recent years, manga and anime adaptations have reimagined Nana Ninomiya as a female character or a non-binary sage, sparking new interest in the old tales.
The most famous folktale associated with Nana Ninomiya involves the “Reading While Walking” episode. According to the legend, Nana was so poor that he could not afford candles. He devised a plan: he would plant rapeseed around the edges of his fields. When the plants grew, he would harvest the seeds, press them for oil, and use that oil to light his study lamp at night. But even that was not enough. He then trained himself to read while walking to the fields, tying his firewood into a shoi (backload) and holding his book in front of his eyes. One day, a passing samurai was so impressed by the boy’s devotion that he gave him a stipend for books. Another version tells of a wealthy merchant who, seeing Nana’s footpath worn deep by his relentless walking, adopted him as a protégé.
The firewood on his back is heavy. The book in his hands is open. And he keeps walking. Perhaps that is the true meaning of Nana Ninomiya—not perfection, but persistence. Not genius, but grit. Not the destination, but the deliberate, virtuous step. “If you have only a single grain of rice, plant it. If you have only a single minute, read. Virtue grows not from waiting, but from walking.” — Attributed to Nana Ninomiya (folk saying) nana ninomiya
The Ministry of Education adopted his story for elementary school moral textbooks ( Shushin ). But there was a problem: the name “Sontoku” was difficult for young children to pronounce. Teachers and textbook authors began to soften the name. “Kinjiro” (his childhood name) was too familiar. Through a process of linguistic mutation common in oral tradition, “Ninomiya-san” became “Nana-san,” and eventually “Nana Ninomiya.” In many regions of Japan, particularly Tohoku and Kanto, the folk memory of “Nana-san” became more powerful than the historical “Sontoku.”
But perhaps his most powerful legacy is invisible. Ask any Japanese grandparent about their school days, and they will likely recall the Nana Ninomiya statue in their playground. Many will admit that as children they secretly hated him—"That goody-goody boy reading all the time!" Yet, in the same breath, they will recall how they started reading on the train to school, or how they learned to save their allowance in a small tanuki bank. Nana Ninomiya entered their consciousness not as a command, but as a gentle ghost, whispering: You have time. Use it well. Nana Ninomiya is not a single person anymore. He is a palimpsest: the real economist Sontoku, the folk hero Nana, the bronze statue, the moral lesson, the meme, and the quiet voice in the back of the mind that says, Don’t scroll. Read. Don’t waste. Save. Don’t complain. Work. In an age of distraction, he stands as a radical figure: a boy who refused to separate his body from his mind, his labor from his learning, his present from his future. Feminist scholars also note the irony of the
Another folk variant, less known but equally revealing, casts Nana as a trickster figure. In this story, a lazy neighbor asks how Nana succeeds. Nana replies, “I simply walk backward.” The neighbor, literal-minded, tries walking backward and trips. Nana laughs and says, “I meant I look backward at my past mistakes while moving forward into the future.” This playful, Socratic wisdom became a hallmark of the folkloric Nana Ninomiya—a figure who outsmarts not through wealth or strength, but through wit and virtue. If you visit any pre-war elementary school in Japan, you might find a bronze statue of a boy with a shaven head, wearing a hanten (work coat) and geta (wooden clogs), carrying a bundle of firewood cross-hatched on his back, with a book—often an open scroll or a small bound volume—held in front of his face. This is the Nana Ninomiya statue.
At the age of 16, Kinjiro found himself as the sole provider for his ailing mother and younger siblings. To survive, he worked the fields during the day and wove sandals at night. Yet, even amidst this crushing labor, Kinjiro harbored an unquenchable thirst for knowledge. There was no time for formal schooling, but there was the night. He famously studied by the light of andon (oil lamps) and later, to save oil, by the light of the embers of a cooking fire. The most iconic legend—the one that would become the statue—claims he read while walking to and from the fields, strapping bundles of firewood to his back to maximize every spare second. The most famous folktale associated with Nana Ninomiya
In popular culture, Nana appears everywhere. He is a mascot for banking apps that encourage micro-savings. He is a character in the long-running children’s show Nintama Rantarō . A 2022 anime film, The Boy Who Read the Earth , reimagined his story as a climate fable. His face is on postage stamps, textbooks, and even a line of ecological notebooks made from recycled paper.