From the Ice and Snow to the Courtyard

Su Luoyu, an ordinary college student traveled to the Northeast after the July 7 Incident because of an unexpected car accident. In that ice and snow, he first followed his predecessors and fought bravely against the invaders. Of course, as more and more seniors fell, he found that he seemed to have unintentionally become the senior of the latecomers, but when that new day came, where should he go?