How to make an origami Oniおに(チャレンジ)Oni (Challenge)
A red oni with sharp horns, folded from the waterbomb base. It is a challenge version of the easy oni, with bigger horns and a rounder face.

How to fold
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色の面を上にして、ななめに半分に折って開く(2回)
Start with the colored side up. Fold in half diagonally and unfold, both ways.
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よこ半分の線に、山折りの折りすじをつける
Make a mountain crease across the middle from side to side.
うらがえして谷折りで折りすじをつけ、またうらがえしてもよいです。
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折りすじにそって、三角にたたむ(三角の基本形)
Collapse along the creases into a triangle. This is the waterbomb base.
左右のはしを内側へおしこみながら、上半分を下へたたみます。
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上の2つの先を、ななめ外へ折る(つの)
Fold the two top points out at an angle to make the horns.
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うらがえす
Turn it over.
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うらがえす
Turn it over.
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下のかどを、うしろへ折る
Fold the bottom corner behind.
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左右のかどを、うしろへ折る
Fold the left and right corners behind.
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できあがり!かみの毛、こわい目、きばのある口をかいたら、おにのできあがり!「おにはそと! ふくはうち!」
Finished! Draw the hair, scary eyes and a mouth with fangs. Your oni is finished! "Oni wa soto! Fuku wa uchi!"
Fun fact
節分は「季節を分ける」という意味で、立春の前の日です。豆をまいて、おにをおいはらいます。
Setsubun means "dividing the seasons." It is the day before the first day of spring, and people throw beans to chase away oni.
Origami English in this model
❓ FAQ
- What age is this origami Oni for?
- About Age 7+. It is rated “Medium” (level 3 of 5), with 11 steps, and takes about 15 minutes.
- What paper do I need?
- One sheet of square origami paper (15 cm / 6 in). No scissors or glue are needed.
- What is it called in Japanese?
- In Japanese it is “おに(チャレンジ)” (鬼). The word origami (折り紙) itself means “folding paper”: ori = fold, kami = paper.
- Can I print the instructions?
- Yes. “Print the diagram” puts every step on one page (or a PDF), and the practice sheet has the crease lines printed on the paper. Free for home and classroom use.








