[Mitsuki Nagisa is now available for bondage and hanging!] "... Kokoro will never fall..." Mitsuki, the only daughter of Eiji, who died in a battle between yakuza gangsters, was making a living by cheating money from men using Yuji, her father's subordinate. Yuji had been criticizing her for her misdeeds, but one casual remark from her made him change his mind. The cheeky girl was tied up and imprisoned, and became the target of the men's revenge. Unreasonable training, humiliating gang rape...but the girl continued to resist.