Kakarorot was one of the Goblin God's most important non-Apostle subordinates in the Goblin Empire.
He had been the Goblin God's teacher before the latter became a god.
What he excelled at most was invading worlds and bringing all their resources and living creatures back to the Empire.
As an elite invasion force, the Seventh Expeditionary Corps had never suffered a defeat in any of its invasions to date.
The reason, aside from his command ability and formidable personal strength, was his own ability to conceal his true strength, allowing him to enter worlds below level 10.
And whenever he set out to conquer a world, he would also use special items purchased from humans to make higher-level Train Conductors overlook the world he was attacking.
The only ones who could enter were Train Conductors whose station entry limit was level 9.
Normally, the strength of humans like these would fall within a rather particular range.
With train levels in the thirties but below forty, according to the Goblins' think tank, they did indeed qualify as High-Level Train Conductors, but they had not yet fully consolidated and perfected their own systems of power.
With the means at his disposal, very few could defeat him.
Unless they were true geniuses.
Over the past few decades, Kakarorot had been all but unstoppable in these level-eight and level-nine platform worlds. Even if those truly gifted human Train Conductors wanted to oppose him,
as the Goblin God's teacher, he also possessed many additional life-saving measures bestowed upon him. He could even take the Goblin army into hiding in that world, only returning once the humans capable of defeating them had left.
The more gifted and powerful a Train Conductor was, the less likely they were to remain in one world forever as its bodyguard.