Neither Sousuke nor Natsu could find Nanashi on any sensor. As they continued to look they couldn't find a trace, until after a couple minutes of searching when not just the ground but the whole colonies began to start shaking violently. Outside the windows that make up the ‘sky’ they could see the earth coming closer and closer to them. 

Outside the colony, Nanashi’s Gunpla floated in space. His Origin Strike Gundam equipped with an X Gundam Strike Pack. “Lesson 1!!!” He yelled from the radio. “This is a simulator, which means all the destruction you do isn't permanent. So don't be afraid to destroy the colony trying to escape.” He said as he looked at the falling colony, Multiple GX-bit mobile dolls pushing the colony towards earth. “Man, I feel like Char Annabel.” He said with a chuckle.