Chapter 3188

“Even if it's a favor, I should know who owes me this favor!” After Philip asked this question, the old man guarding the test tower said to Philip, “Presumptuous, you…” However, before he finished speaking, the middle-aged man stopped him. “Mr. Clarke, don’t say anymore!” The middle-aged man turned to Philip and said with a smile, “Keep this card with you. No matter what problems you encounter in this underground city, with this card, I can keep you safe!” Philip took the card, which was dark gold with a black mecha embossed on it. Glancing at the card with a frown, Philip was a little puzzled, having no idea what it was. Next to Philip, Iris exclaimed when she saw the dark golden card and got closer to him. “Philip, put this card away quickly!” She said with excitement on her face. The middle-aged man smiled at Philip and said, “It seems that your friend recognizes this card. If so, let her tell you.” After the middle-aged man finished speaking, he turned to the