"So, no dungeon breaks unless Kang Jaeha is 100% accounted for?"

"Unless he's been declared accounted for while Hye-jin and Tae-gun are in their silos, he could fake any reports they receive while they're out so they should only trust reports they receive from here."

"Oh, and I forgot to say, Hye-jin has an earring that requests a teleport so that she doesn't need to use the commscreen, Kang Jaeha probably can't fake the feeling of being teleported if he doesn't know that's what she's expecting will happen."

"...that's good but you made it sound like it's related to what we were just saying somehow?"

"Oh, I see. If they get a report that Kang Jaeha is in Nightmare and that there's a dungeon break they can teleport home without using the commscreen, which Kang Jaeha wouldn't know to fake, and then they can validate it."

"Yeah, that."

Written down!

"...I just had a thought I'm not smart enough to follow through but I think you are: aren't there cryptography things they could do? Like, get a request for typing a password somewhere, or calculating a number, and unless they do it right they get teleported away..."

"...oh, like a captcha but with encryption keys? I like it, that's a way they could verify that anything in particular is trustworthy. Actually, that's genius, Juheon, just make it so whenever they receive certain kinds of comms they have to validate a key they receive and if it gets successfully validated they're teleported somewhere secure, so they know that if they didn't get teleported the comms are being faked..."

"This is making me more concerned for Woo-young's safety, you know."

"...why? This would all be automated."

"You're the one who feeds the teleportation batteries. If you can't feed them, we only have until they run out before everything stops working..."

"Attach the systems to other teleporters too. But also there's a ton of my power saved up, more than enough to get everyone somewhere safe if I do get killed, at which point you all can reassess."

"You are really far too unbothered by the thought of dying."

"We can brainstorm ways to make me safe once we're done with this, how about? That'll be the only uncovered cell in my danger table then."

"...fine."

"Next thing I wanted to cover was, what else can Kang Jaeha do to fuck us over? Assume we're good on making sure our heroes never hurt innocents."

"...he could kidnap them."

"Not for very long, and I think us having proper GPS tracking for them plus all of the other automated surveillance tools we've got..."

"Turn the question around: if Kang Jaeha's goal is still to get Kim Hye-jin out of the picture and get Tae-gun back, what would he do?"

"...I'm not sure he can? Before Hye-jin maybe he could've, but at this point—hyung is in love with her, the only way he'd let her go would be if—she chose to leave."

"Well, he's clearly delusional anyway so let's entertain the hypothetical."

"Is there a way for him to make Tae-gun think Hye-jin left of her own volition? Presumably if she just vanished and wrote him a letter he wouldn't believe it... She'd need to still exist out there in the world, doing dungeons and everything, for him to believe it's real."

"Depending on how crazy he is he might consider 'kidnap Tae-gun, keep him in a box in a simulated reality for the rest of his life' to be a success."

"It's categorically impossible for him to do this for as long as I'm alive and even if I'm not there's no way the entirety of Korea and many other places besides wouldn't go on a manhunt to find Tae-gun. And Kang Jaeha may not be fully in touch with reality but I don't think he's so insane as to not consider that."