John's idea wasn't a spur-of-the-moment decision.
It stemmed from his conversations with Elaria.
Elaria, like a newborn child, was full of curiosity about the world and asked John many questions.
When Elaria learned that there was another world outside of this one, which was John's homeland, her curiosity peaked. She wanted to see John's world.
Upon realizing that, as a being of this world, she couldn't travel between the two worlds, Elaria was disappointed.
This was what inspired John to consider turning Elaria into a player.
He had consulted Seraphina about it.
"No, it's not possible," Seraphina had said without hesitation, directly rejecting John's idea.
"Why not?"