This is a world of cold weapons (hot weapons will be added later). There are four countries in this world.
They are the Iron Halberd Kingdom (the military is extremely developed and good at using large-scale sprints), the Yingfeng Kingdom (the people in this country are more agile and good at using daggers), the Tianying Kingdom (the people in this country are particularly good at using swords), and the Shenxue Kingdom (the people in this country are very good at riding and shooting).
Before the children of each country reach the age of ten, they will practice the use of weapons of each country with the master in the village (for example, Tianying Country learns how to use the tachi). After reaching the age of ten, you will take an exam. If you pass the exam, you can enter a nearby city for more in-depth study. Most students will go to the army, and a few students will be recruited by powerful sects. The male and female protagonists live in Tianying Kingdom. Ps: The story will be told from two perspectives: the male protagonist and the female protagonist.
Concept: Surviving in a cold world, the mutual affection between brothers and sisters, using the male protagonist to express the strong and unyielding human spirit