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[System + Urban High Martial Arts + Spiritual Energy Recovery + Decisive Killing] Mo Xiaokun has lost his parents since he was a child. He has been living alone for 10 years. He owns two villas and has no worries about food and clothing. When he was 18 years old, Mo Xiaokun's peaceful life was broken. He was told by the doctor that he had cancer. At the same time, the [Devil System] was activated, telling him that he only had 30 days left to live. Whether he could save his life was the first thing he had to do. During this period, he learned that he also had a younger sister who had turned into a 'weird spirit' and was actually eaten by her parents who had already passed away! Then, more bizarre events followed. Who is a human, who is a ghost, who is a demon, and who is a beast? ! Under the urban undercurrent, the race against life begins...