Kubi, in Japanese, refers to three different areas of the body: the neck, the wrists and the ankles. In its culture of origin, these areas relate to the three places where the body narrows and, therefore, to the flow of mystical energies.
From a rational, anatomical perspective, they are three especially delicate areas of the body: they pack a large number of nerves, tendons and joint structures into a small space, where it is relatively easy to cause severe damage.
Kubi shibari (首縛り) refers to the techniques specifically developed to use ties on these three areas safely and with an erotic purpose.

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