"I'm not familiar with the concept but I believe I follow."

"Oh good, I have no idea how much science fiction I'd have to regurgitate badly for that to make sense.

"Anyway, my name is Haru."

"Not Traceless?"

"That's my esper codename. Doesn't make a lot of sense here."

"Ah, yes, those do exist but aren't used in polite company."

"...when are they used then?"

"When attempting to prevent or commit crimes. Or when campaigning against wild demons."

"Those situations are... not polite?"

"The first two, and in particular committing crimes, are not. Campaigning also isn't but it can still be considered noble and sometimes success in it can result in someone's nom de guerre entering standard usage, typically attached to their natural name."

"Okay. Well, I can use my normal name here."

"That would be reasonable."

"What are my immediate prospects for, like, food and shelter and all that good stuff."

"You can stay in this manor's guest house and meals can be provided there, and I can arrange for you to be invited to much of my social calendar."

"Should I want to be invited to much of your social calendar?"

"I suspect if I am known to be housing a foreign man who does not attend social functions there will be... unfortunate rumors, which I would rather avoid."

"Gotcha. What's on the calendar, for some reason all I'm coming up with is tea parties but you probably do things other than tea parties."

"Courting season is due to start soon, which will mostly mean balls. You will not be expected to attend all of the balls so long as you don't present as empowered but attending none would be marked for a visiting noble."

"Is it going to be a huge problem if I don't present as empowered and then have to do power stuff in an emergency? Is it going to be a huge problem if I do not want to court any eighteenth century nobles in an alternate universe?"

"If you are known to be an empowered and don't court it will be an issue - if empowered fail to marry within a few years of first showing powers their demons will grow out of control regardless of how often they seclude themselves, and wild demons are a threat to everyone. A wild demon that manifested so close to London in particular would be a disaster."

"Ugh. Can I just pretend to be married to my partner back home?"

"Distance renders marriage ineffective."

"...what a concerning sentence."

"It is typically not a significant issue and probably has positive effects insofar as it discourages long military campaigns and abandonment of a man's familial duties."

"If I were from this planet and was in fact married to June and had through no fault of my own been transported across the sea, would she and I just be, like, summarily executed?"

"It would be possible for you to cross the Atlantic if you had a wife in the colonies. I expect someone would be willing to fly you there if you were not capable of doing so yourself and a ship was not fast enough."