I see you're interested in a Chinese TV series!
"Jiu Shi Nian Dai Zhong Guo Gu Niang Xie Zhen" (which translates to "The Young Marshal" or "" in Chinese) is a popular Chinese historical drama that aired from 2015 to 2016. The series consists of 42 episodes, not 6, but I assume you meant to refer to the first 6 episodes or the overall series. jiu shi nian dai zhong guo gu niang xie zhen1-6bu
The show is based on the life of Zhang Xueliang, a renowned warlord and politician in modern Chinese history. The series received generally positive reviews for its engaging storyline, well-developed characters, and strong performances from the cast, particularly the lead actors Huang Jingyu and Li Yixiao. I see you're interested in a Chinese TV series