Song Qingci, an extreme mysophobic patient with a morbid obsession with "cleanliness". When she was near death in an accident, she activated the ancient technology - "Pure Source Toxin Elimination System". The system can microscopically scan the toxicity of all things and can trace the source of pollution. The sterile apartment and glamorous city she was so proud of turned out to be a "garbage dump" filled with toxins! From plain water to the air, from organic vegetables to "natural" milk, invisible toxins are everywhere, subverting her worldview. Mysophobia makes her unable to bear the filthiness of the world, and the temptation of system upgrade forces her to take action. She transformed into an "all-powerful purifier" and used the eyes of the system to tear apart the hypocritical appearance of the city. From a small "drug den" to a disguised giant, she revealed the truth step by step. However, when she thought victory was in sight, she discovered that this was just the tip of the iceberg of a huge pollution alliance. Facing the mastermind behind the scenes, how will Song Qingci purify this muddy world on his own?
