[ Joonghyuk doesn't reassure him past that and the silence itself should be telling enough. They're of mutual understanding that supporting characters are extremely important no matter how small their "screentime." ]

... Is it really a mystery?

[ He asks, but he doesn't expect the Exarch answer. For him, his world didn't split in the same way as what he hears. There was no shatter—or maybe there was? He was never there at the origin, the first world-line, so he wouldn't know. A bunch of theories string in his head as he watches the minion, thinking of a different mystery. Are the alternate Sources these Warriors of Light reside that different from the Exarch's shards?]

A world is created and destroyed with every decision we make—one where we made another choice and tread a different path.

[ Odd enough, again, Joonghyuk has an odd amount of understanding only because... His universe has the weird alternate world phenomenon, too. Except he had the (un)fortunate opportunity in meeting other beings from different world-lines. It's more painful for him, having known that world... Closing his eyes, he can easily recount that world and its end. When he opens his eyes again, there's something he is interested in. ]

You summoned the Warrior of Light from another shard?

[ Joonghyuk doesn't show hostility, but there is some disbelief and... Lowkey suspicion. ]