With only one day left in his 100-year goal, he fails to become a human being. He is even bitten by a woman, Joo Inhae, causing him to faint. "Cat Man" Go Yangnam advises him to keep her by his side and watch her over, as she doesn't seem to be an ordinary person. Meanwhile, Inhae encounters a real estate scammer and gets involved in a chase to catch the fraudster, but finds herself in danger...