Kobetsu (個別) literally means “individual”.
In the context of Japanese SM clubs or professional erotic services, it is used on social media or in “classified ads” to refer to a private session.
The phrase normally used is kobetsu o-shibari no irai (個別御縛りの依賴), which includes the idea of a “request”, an element required by the Japanese legislation that regulates this sector.
Other common wordings are kobetsu o-shibari sesshon (個別御縛りセッション, “private shibari session”) and the more informal puraibeto o-shibari (プライベート御縛り).

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