Tang Shaoyang left the Skelly Family and Rumru in the city as he returned to the Dimensional Gate. He needed more preparation before he could go on his journey to find Lunea and also kill the human Gods.
The first preparation that he needed was to put guards on the gate. He could not allow anyone to enter the gate whether from Aqura or from Earth without his permission. That was specifically for the people from Aqura. Not just guards, the dwarf was deployed to cover the Dimensional Gate. Just a casual house for three people was built, and Tang Shaoyang summoned three spirits to guard the gate.
Three Grade S+ Spirit should be enough. If anything stronger came for them, he could switch places with them anytime to help.
Karoen and Zara expressed their interest in following him instead of staying behind. The two had no interest in doing more research than what they had achieved. Completely different from their partner who begged them to stay behind with him.