The National Southwestern University and Us (2023)

They tell about the same time period and even some places are the same. Both mentions on education but Youth in the flames of war's main focus is on education and have less battle scenes. Both of their main focus is not romance but war and political situation. Both have bromance. The tension between nationalist and communists are mentioned in both.

The stories happen in similar times but from different aspects. They both focus on common people's lives and we see character development. Both of them feel realistic but Battle of Changsha is more tragedic.Both have romance but not heavy and have different focuses.

Both have the same setting, very similar plot and characters, and focus on the same events. Both also have the same style.