[Himitsu] Koori [Ongoing]

When her classmates head home and her friends head off to part-time jobs and crab dinners, one schoolgirl unpacks a bag full of rope and a ball gag for a very different kind of after-school activity. A hand-drawn manual diagrams her elaborate self-bondage system of connection hooks and control ropes, but the reality leaves her trussed in tight shibari from ankles to chest, drooling around her gag as a crotch rope grinds against her with every twitch. Squirming across two chairs and straining against the desk hook while her phone buzzes out of reach, she discovers how quickly careful knots become inescapable.