Thief's Pen: The Cold Beauty of the Black Master.

Summary

Summary of the passage: A group of adventurers, including Wu Xie, Pang Zi, and others, encounter a mysterious black cat named Yu Yin who transforms into a human. The black-eyed man reveals Yu Yin is a cat spirit rescued from Little Jin. They discuss the Zero Laboratory, a secretive institution conducting human experiments, which both Yu Yin and Zhang Qiling have connections to. The group is shocked by the revelations and expresses anger towards the laboratory's unethical practices.

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