After taking and analysing all the main rewards Rein, Tasha and Stella returned back to the dungeon master's dimension to check on Lucia's progress. She told them that the whole process was going more smoothly than expected and there was nothing to worry about. Rein just reminded her to not let her guard down and set up a portable house in this dimension.
Inside the house, the three of them were talking about their recent gains. This dungeon taking over process was going to take some more time and the conquerors were going to stay here for that duration to protect Lucia from any unforeseen circumstances.
But instead of doing nothing and just sitting around, they decided to utilise the accelerated time here to harvest the gains from this dungeon. All three of them had things they needed to do.