Daomeidan Dazhan Qi Yun Wang

Ye Wuyou transmigrated into a fantasy world, only to find himself with no support, no talent, and no luck, stuck with a job as a worthless street-sweeper. He thought he'll just live a quiet life, until he was suddenly blessed with the God-Tier Luck System. A few years later, Ye Wuyou looked back to find himself on the top of the world, known as the luckiest man alive! (Source: Tencent, translated)