Armor Can Kill Monsters, but Wearing a COS Suit Can't?

Li Ziyu, who stayed up late to death, traveled to a world that was very different from his previous life. He thought about the principle of taking care of things as they come, and wanted to spend this life steadily. But what he saw shortly afterwards shocked him. The team wearing uniform black armor brought back a three-meter-long dragon. At that time, Li Ziyu didn't believe it. When he went up to touch it, he was stunned. Under the collision of materialism and cognition, he was absolutely sure that it was indeed a Western-style dragon. In the days that followed, the corpses of goblins, witches, and elves were brought back to his city. … … [Practice and kill the corresponding creatures to unlock the illustrated book and obtain rewards. [100% Progress in collecting the Demonic Wolf Illustrated Book] [Demon Wolf Armor has been unlocked] [Magical Girl Staff has been explained] [Ghost cloak has been unlocked] ………… … A long, long time later, the world's only giant bell was rung again. On that day, people from other worlds recalled the fear of being dominated by a human being. "That was a demon. I have never seen such a terrifying creature. He bit off my arm forcefully," the goddess said.