[In typical military-mind fashion, the key thing to do when running from monsters you did not have the power to kill (since Acumen would not let you have a GUN) is to find a) the most secure structure and b) do not lead them back to your home. He had no idea where the other Meisters were and that bothered him, but he wouldn't be much help either if he had gotten eaten.
So that was what had brought him to the dome.
And he's coming into the kitchen in the morning to snag breakfast before heading back to his apartment. And of course he sees Sakamoto.]