(SPOILERS)
That iirc happens in the Tokyo area when it's Hoyoung's recruiting arc, it could be a bit far ahead. Yeah tho, all the actual intimacy will happen once they're out cuz they can't do anything while everyone has to stay near Yohan to stay sane, but I kinda expect the manhwa to stray a bit from that? Like, showing all the skinship and closeness, I'm also interested to see their alone moment at the giant bugs' lair

How long until smexy smex?
Is this like Turning where we will have to wait for years or?