When Erwora was in the middle of her heated discussion about the price of the wine, Rean just happened to arrive near the location. He kept his Divine Sense short, encompassing only a few meters, while using his Light and Divine Sense Bending to avoid detection.
Hiding on the ship didn't seem like a good idea, so it was better to assume someone's identity. That was easily done as the system could make a perfect copy of someone's Werdlem Energy Signature, or ID. As for the reason Rean took Erwora, that was because of her wine-selling side hustle.
Rean could easily tell that many came to buy the wine with her, and that worked perfectly. Everyone knew her. Not only could he get more information about the people of the Great Void Spaceship, but he would also be able to hide in plain sight.
