C138 Something Strange about the Trip

69 chapter Expedition 1

"How do I use it?" Chung Yongchao took off his hat and asked.

"This switch, just turn it on when you get there. If there is a situation, the electronic system inside will automatically release a specific wave to protect you. " Lee Yumei looked at Chung Yongchao as if she was looking at an idiot. Learning was not easy. Souls were not so easy to use