The dungeon is in Korea, but as an esper with a pretty specialised power niche Haru is used to occasionally having to go international for these dungeons, and the fact that he already speaks Korean is definitely a bonus. The espers he's going to be working with are all in Quasar Guild, which is the largest one in Korea and which has just recently acquired a very powerful teleportation esper, one whose power can be stored in batteries Quasar also happened to already have in its possession, so they're covering the teleportation cost for Haru to get there.
"So, you're thinkin' of joining Quasar?" Ha-eun says, leaning forward and peering at Jaeha's and Haru's faces. "What makes you think you're good enough for Quasar?"
Jaeha will get a black coffee. Yes, really.
"What makes Quasar think it's good enough for either of us?"
"In all seriousness I was just talking Yoo-min's ear off and the fact that Jaeha and I should maybe stop living in different countries came up and he said 'how about Quasar'. The boundless self-importance and hubris is unrelated."
"Every esper! Does Quasar have ambitions of going global? Should I fire my Canadian agent?"
"I don't think anyone but me has the vision," he says, sighing wistfully and leaning on Seungjoo.
"Are we meant to be selling you on Quasar or just hanging out? I didn't prepare my slides."
"Cool excellent so in that case tell me more about yourself, are you and Kang Jaeha-nim partners?"
"I have a current official partner back in Japan but the backlash interaction is awkward in practice - hers is the exact opposite of mine, it's amazing on paper and pretty inconvenient to actually sit through. Though it's sustainable at a low enough dungeoneering pace. And Jaeha's so far the best prospect I've found for a better setup."
"I assume the fact that you're bringing it up means your backlash isn't secret...?"
"Mine or hers? Mine would be worse to deal with if it were secret because it's that I get very lonely, that's why I was bothering Yoo-min the other day. Hers happened on stage and if you Google her you find it."
Jaeha will not share his backlash, obviously, but he may or may not want to pet Haru a bit, protectively.
Awwwww what a good Jaeha. "I'm not backlashed at all right now, but if I were, this sort of gathering would be very appealing and also make a shortlist of things I would be able to concentrate on. I like spending a lot of quality time with my sanity so I don't know if I'd always show up if we signed on, it'd depend on how the timing worked out, it'd be more likely to look like me texting you at random times to get someone to talk on the phone. Or hang out in person, that doesn't work when I'm in Yamanaka's silo but would here."