C2083 Promise

Xuanyuan Bubai and Qin Yunyi spent the whole night talking. Qin Yunyi was basically the one asking questions, and Xuanyuan Bubai was responsible for answering them.

Using this opportunity, Qin Yunyi basically asked all the questions in his heart, and Xuanyuan Bubai didn't hold anything back. He tried his best to explain them to Qin Yunyi