Setsubun in Japan: Why Beans Are Thrown and What Oni Represent

Have you heard of Setsubun, a small seasonal event that shows up in Japan each February?

In early February, bags of soybeans quietly appear in supermarkets across Japan. They sit among everyday groceries, without signs or explanations. Many people notice them in passing and think, almost automatically, “Oh, it’s that time again.”

Setsubun does not arrive as a big event. Some families do something small at home. Others encounter it through their children, at school or daycare.

For many people, it is remembered not as a single occasion, but as a series of similar moments, repeated year after year.

How Setsubun Continues

At Home and at School

Setsubun is not experienced only at home. Many people also encounter it in group settings such as daycare or kindergarten.

Children take part together, often in much the same way each year. Beans are thrown. Someone plays the role of the oni. The scene is familiar enough that it rarely feels new.

It appears again and again, in similar forms, as part of the year.

From Child to Adult

As children grow older, their role in Setsubun changes. When they are young, they are usually the ones throwing beans.

Later, they become the ones helping organize the moment. Some take on the role of the oni themselves.

This shift often happens without much thought.

Because Setsubun has always been around, stepping into the adult role feels more like continuing something familiar than joining something new.

The Oni in Setsubun

What “Oni” Means to Children in Japan

In Japan, an oni is a figure many children recognize from an early age. It appears often in picture books, folk tales, and children’s stories.

In these stories, the oni is usually not a complex character. It plays the role of an enemy or something that needs to be driven away. Well-known tales such as Momotaro present the oni as a clear opponent, making the idea easy for children to understand.

Because of this, most children are already familiar with the idea of an oni before they encounter Setsubun at home or at school. It is not something that needs to be explained to them on the day itself.

For many children, the oni already represents “something bad” that does not belong inside.

Why the Oni Appears on Setsubun

During Setsubun, the oni represents things people want to keep out of the home for the coming year. This includes bad luck, illness, trouble, or anything that feels negative or unsettled.

Rather than naming each concern separately, these ideas are gathered into the figure of the oni. By chasing it away, families mark a clear boundary between what stays inside the home and what should be left outside.

Roasted soybeans are used for this purpose because they are simple and familiar. Beans are part of everyday food, something people recognize and already have around.

Throwing them is safe, easy, and physical. Children can take part without needing careful instructions or special tools.

At this time of year, bags of roasted soybeans are sold widely in supermarkets and convenience stores. This makes the activity easy to join, even with little preparation.

Because of this, the act of throwing beans fits naturally into daily life. It turns the idea of “driving something away” into a shared, hands-on moment that children can understand.

Outside Perspectives

A Shared Idea Across Cultures

The idea behind Setsubun is not unique to Japan. Across many cultures, certain moments in the year are treated as times to clear away what feels unwanted and reset for what comes next.

The ways people do this vary widely. Sometimes it takes the form of words or gestures. In other cases, it involves small rituals connected to personal beliefs or religious traditions.

What these practices share is not a fixed method, but a similar feeling. There is a sense that some moments call for drawing a line—leaving certain things behind and moving forward.

Everyday Settings in Japan

What feels different in Japan is where and how this idea appears. Setsubun is not limited to a religious space or a private, individual decision. It takes place in everyday environments—homes, classrooms, and daycare spaces.

Children are not watching from the outside. They are part of the scene from the beginning, taking part alongside others.

Because of this, explanation does not come first. Children do not start by learning what the event is supposed to mean. They learn it through repeated experience, year after year, in familiar places.

From the outside, this structure can stand out. Not because the idea of keeping bad things away is rare, but because it is shared early in life and woven into ordinary spaces rather than set apart.

Where Setsubun Comes From

Marking a Change in the Season

Setsubun began as a way to notice the turning point between seasons. Rather than marking a special event, it sits quietly within the calendar as a moment of transition.

In everyday life, seasons change gradually. But Setsubun offers a small pause — a chance to acknowledge that one phase is ending and another is about to begin.

Because of this, Setsubun is less about celebration and more about awareness. It is a simple way of recognizing that time is moving forward, and that the rhythm of daily life is shifting with it.

Leaving Things Behind

Alongside this awareness of change is another shared idea: that certain things are better left behind as a new season begins.

These are not always clearly defined. They might include lingering illness, uneasiness, bad luck, or things that did not go well before.

Rather than naming each of these individually, Setsubun gathers them into a single figure — the oni. In this context, the oni is not something to be believed in or worshipped.

It is a practical symbol. A way to give shape to what people would rather keep outside the home as they move into the next season.

By throwing beans and calling out, families act out this separation in a simple, physical way. What stays inside and what is sent away becomes clear, even without explanation.

A Familiar Seasonal Moment

Setsubun is remembered not as a single event, but as a moment that quietly returns each year. Children encounter it early, take part naturally, and later step into new roles themselves.

Through this gentle repetition, Setsubun stays close to everyday life, marking the shift of the seasons without needing explanation.