Hello Ms. Kokoyashi, there is K191/K191 from Chengdu/ Guangzhou, and it will take you about 29hours35mins. The upper berth of the soft sleeper train ticket is CNY615.00net, while the lower berth is CNY642.00. Besides this one, the train K588 from Chengdu/ Shenzhen West is also available, while it will take longer time, say, about 35 hours with higher cost, thus, you are suggested to take the one to Guangzhou. Hope this is helpful.