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.
"Five, ten minutes." Jaeha's house overlooks the Han river and is therefore pretty central in Seoul, and the Quasar folks picked a nice central place, too.
Haru is doing great - his standing schedule situation with his guild is sufficient to let him sometimes be doing great even with Yamanaka alone, and he hasn't told them to work him harder, yet. So he does not feel the need to further chat during this handholding walk along the river.
Honestly, fine by Jaeha, too. That way he doesn't have to fake having a personality except when strictly necessary.
And bar? He looked up the place on Street View but it may have redecorated since the last photo was taken.
And bar! Park Yoo-min spots them from the table he and a few other people are already seated at and waves them over. "Welcome, welcome! Let me introduce everyone. You've met my partner Choi Seungjoo, and these are Ha Si-yeon, Yoon Ha-eun, Baek Hyun-jae, and Lee Juheon."
This is why fistbumps instead of handshakes! Flinching from a handshake is incredibly rude and flinching from a fistbump is built into the gesture from the beginning! "And this is Kang Jaeha."