To commemorate Muku's 2nd Anniversary, Rino Hinata's hemp rope bondage is finally unleashed!! Hinata, a girl who lived a carefree and ordinary life, was tragically involved in a hit-and-run accident with a black luxury car two years ago while out with her family. She lost both her parents in the accident. She herself was hospitalized in a coma for about a year, and when she awoke, she had lost her memories. It was a lonely man named Hinata Kotaro who took in Hinata, who had become utterly alone... When she was told the memories she didn't want to remember and the truths she didn't want to know, the girl was plunged into the abyss of despair!! The beginning of inescapable rope bondage training... .