Earth strikes back -The moment Arcadia lost ll

"There's something else, Earth." 

[Earth, what host.] System asked, confused about what its host was talking about. 

 "Earth, the planet earth wasn't something even remotely mentioned in the story. But now it's part of this novel setting, since I belonged there." Rio explained what he could think of as the only valuable explanation.

[These are both separate worlds, host. They don't even exist on the same plane of existence. Earth is one of the lowest grade planets in creation, while Arcadia is one of the higher ones.]

"You're right. But if sealing Ditail in another realm could lead to Emergence a 1000 years ago, didn't I do the same too? I was supposed to be on earth, in the lower plane of existence as you said. But now I'm here, in another plane, a higher one. Something where I wasn't supposed to be."