Responses
That's a really good theory
A long time ago, I read that Kouchi's father already knew about that world. Now that you're explaining it, it's even more interesting.
Really? If the father thing is indeed true then that adds even more to the possibility of kouichi having any hidden connections to this world (maybe his father was a resident of this world? Of the already extinct dwarf species?)
In their world only the king and caius as the future king can act as vessels to obtain power from the god to transfer it to the people but according to rail's explanation kuoichi was somehow transferring power of his own to caius (?) because of which he was always overflowing with power even tho the ill king wasn't able to transfer enough power to people? He also transferred power to the egg despite it not being servant of the same god (different species have different gods so) Does that imply that he can somehow also act as a vessel too similar to a king? Maybe that also implies that kuoichi has some more hidden connections to this world rather than just being a summoned bride (?) Is that what is happening here? I could be wrong too here