According to Baidu map, Yongcheng is 50 kilometers away from Xiayi, so you can take a bus, which takes about 1 hour and 10 minutes.
Yongcheng is a county-level city under the jurisdiction of Henan Province and is managed by Shangqiu City directly under the jurisdiction of Henan Province. Located in the easternmost part of Henan Province, at the junction of Henan, Shandong, Jiangsu and Anhui provinces, it is a regional central city. It is rated as a Millennium old county and a key county and city in Henan Province, and is known as the gateway to eastern Henan.