緊縛バージョンです。

縛りが複雑なせいか再現性はかなり低いです。💦

基本後ろ向き推奨ですが前向きでもそれなりに縛ってくれます。

This is the bondage version.

Due to the complexity of the binding, the reproducibility is quite low. 💦

Facing backward is generally recommended, but it will still bind you reasonably well even facing forward.