The next day, Carl and the other two returned to the northern border area of Punk Fortress. After a hard day's work, the large gap had been temporarily repaired and sealed with a layer of weak materials. "Hey! You came quite early!" Clark greeted Carl and the other two, standing on the wall. Carl smiled faintly and nodded. "Sir, you came very early too! It was said yesterday that Boo would do the mission, wasn't it?" "Brat, can we really let Boo carry out the security and defense mission alone? She was completely exhausted yesterday, just like us!" Instructor Yates shook his head and sighed. "Yes, you're right. We went back and took a short rest yesterday. Clark dragged us here for a shift change!" After saying that, Link stretched himself, still looking very tired. After Carl and the