C567 He Had Witnessed It with His Own Eyes

If a girl learns it, she can use it to protect herself. If a boy learns it, he might be able to save the damsel or something. No matter how bad it is, he can protect himself and won't be bullied by others in the future.

"Instructor, since that's the case, then what are we waiting for? Let's hurry up and start." A classmate said to Xu Qiang excitedly