Blue Yun hesitated for a moment and wanted to protest, but when she saw the expressions of the remaining three, she knew she could not be as presumptuous as she was in front of Blue Yang. So she knelt slowly, raised her right hand and stretched out, still lowering her head. Then she felt that the hot blue Yang palm had been attached to her palm, and gently held her cold hand. Then she said, "Blue Ling, take out your penknife and leave a mark on the back of her hand!" Let her remember that lesson!"

Blue Cloud knows the knife. Each of the four instructors in Penghu Langyuan has...