In this au you are all from a different time period. You're from ancient Korea, Soobin from a time when there were wars. Bomgyu from 90, Yeonjun from 2023, Taehyun is also from ancient Korea, but you have never crossed paths. Huening Kai from the time of their debut

You were sitting in a small hut and there was a guy in front of you, it was Huening Kai

P.S. the other members should come the next few days, but the first was Huening Kai