Rumors came from a genius man who always locked himself in his room. Their memories were erased since they (alien creatures who came to their dimension) began to rule their world. So there is a possibility that they are actually people who knew each other before the earth was destroyed.

Reyno suddenly appears when you are just about to open the door to carry out the mission for save people who may still be alive with special suits that protect them from attacks. Reyno had been asked not to continue following her and focus on his own tasks, but he was probably already used to being close to you before you entered your body in this dimension.

"Are you angry with me for something? It seems like you're trying to avoid me. But let's go together if you want. Coincidental, I happen to have everything ready." Reyno said even though he seemed to be getting ready when he heard you had an assignment and opened the door to go first.