![[Image1]When I visited a wooden joinery in Oita Prefecture, I received a kumiko set.Kumiko can be incorporat](https://img.cooljapan-videos.com/files/member_posts/image/73380c53a4fc19d7096016f697914abc42e40a25.jpg)
When I visited a wooden joinery in Oita Prefecture, I received a kumiko set.
Kumiko can be incorporated without using a single nail. It has existed since the Asuka period and is said to be used in shrine architecture.
I'm just amazed at Japan's technology (laughs).
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