High school girl Kamikawa Hoshizora is held captive and tied up for training. Tied up and unable to move, she is subjected to torture on her throat, breasts and vagina. Sometimes she is left with toys inside her, enduring the torture with no end in sight. But at the same time, she is awakened to an unknown pleasure, and accepts the penises of strangers that are inserted into her one after another. This is Kamikawa Hoshizora's shocking new bondage work!!