share time: 2025-12-20 00:39:17
Lin Shen, a billionaire mining tycoon, disguises himself as a migrant worker to search for his sister missing for 18 years. He infiltrates a remote coal mine under his company, hoping to find clues quietly—only to witness mine director Zhao Qiang abusing a "mute female worker." The battered figure huddled in the corner is exactly Xiaotang, his long-lost sister! Zhao has embezzled profits, forced Xiaotang to work in the mine, and even broke her tongue to silence her. Lin suppresses his rage: he protects Xiaotang secretly as a worker while gathering Zhao’s crimes, determined to make the wrongdoers pay and reclaim their family bond…
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![Urban Cultivation at Nine Thousand Layers [Short Drama Collection]](https://img.kaixinduanju.com/vi/R8-6Wqx0AOw/mqdefault.jpg "Urban Cultivation at Nine Thousand Layers [Short Drama Collection]")