After the first day of fighting, the students have already killed half of their opponent's number. The students decide that they will fight again in the fourth round and split into two groups, one led by zhuohan and the other by bing, ding, shuo, and yutian. The group will fight against the sixth-level dragons, and the two groups will be joined by the fourth- and fifth-level students. The fourth-grader whooshes his blond hair grows quickly and his body grows bigger. A flickering light ball hovers over the head of the student whoosh. Two rays of light move above the student's head and form two dragons.