C137 Nurturing Center

Chen Fan then went to the tail of the train. He looked around and decided to contact Billy.

"Where are you now, Chen Fan? Are you at the tail of the train?"

Billy's surprised voice came from the other side of the phone. Chen Fan said lightly, "I'm already at the tail of the train. Now, only the two of us can start the brake system at the same time. We can stop the train immediately