C118 Knowing self and knowing the enemy

Zhang Chao held onto the written challenge, and without looking back, he walked away from the crowd.

Since he dared to accept Qiao Ruiyun's challenge letter, he had already mentally prepared himself.

Back then, when he arrived at the entrance of War God Academy, he had already expected to meet Qiao Ruiyun, but he hadn't thought that he would actually do it so quickly!

However