Final Phase.

It wasn't Kelvin that found the entrance to the core of the world. He wasn't so lucky. In fact, it seemed as if he had exhausted his luck weeks ago when he found another energy stone mine. 

For five weeks he was just moving about, running for his life or fighting for his life. His wish to sightsee wasn't fulfilled. But Wrath loved to see him suffer, so one of them had fun. 

He was very glad when he received the order to retreat. 

He said, "Finally, we can put an end to this laborious work."

Despite being happy about the prospect of ending the invasion and returning home, his mood only improved slightly as he rushed back to the base. 

His bad mood had hung over his mind for weeks. So it continued to influence him on the ride back. He had just switched from being sullen to feeling some anticipation when he returned to base after 9 days of riding non-stop.