My Dongguan Sister

Su Ming, carrying his meager savings, squeezed onto a green-skinned train heading south to Dongguan to seek refuge with his sister, plunging into the tide of migrant workers there. Unexpectedly, he discovered that his sister was working at a nightclub. Because of her, he got entangled in gang conflicts, embarking on a different path in life. — Description from novelcodex.org