Duan Ling Tian wanted to show Wan Qing Qing the way to the Profound Nether Mansion's base so it would be easier for them to meet up later. Although he could also meet her at the Martial Battle Mansion's base in the middle realm, he knew it would be difficult for her to reveal the location of her mansion's base.
After Duan Ling Tian received Wan Qing Qing's Soul Pearl, he said. "If the Fire Glaze Mansion's base is close to the Martial Battle Mansion's base, we can meet near the Fire Glaze Mansion's base."
"Where's the Profound Nether Mansion's base in the middle realm?" Wan Qing Qing asked. She did not fuss about Duan Ling Tian's sudden need to leave. She could tell he was not trying to get out of his promise to her and that he genuinely had something urgent to attend to. After all, if he really wanted to renege on their deal, there was no need for him to come up with an excuse at all.