Here's a boy, no older than nineteen, quietly sipping from a mug in an interdimensional bar. There is a rather large rather ponty-eared panther lying next to him, purring softly as the boy scratches its head. Floating in front of his face is a book, which he is absently reading. Given that he didn't walk in from the door, it can be presumed he is probably a tenant who came here from one of the rooms upstairs at some point.
"Don't talk to me about mindsets that are not good for me. You know what I was actually thinking when I heard about the ones of ourselves that come in twin? I was thinking 'I hope they can be functional without me' because the two care about every fucking thing and they are more likely to let that caring burn them from the inside out. Did you know that when they heard about scope insensitivity they spent a while wondering how to use magic to bypass it? And my reaction was 'that's what they look with a bias that tones down their behavior?'"
"I DON'T CARE!" Thomas shouts. "You need to leave this place! Go home, work on how to be a healthy human being without self-destructive streaks!"
"Thomas is right. You-you can't keep going like this. It's not even a matter of us allowing. You are just not good enough." Katur flinches while saying that last word.
"You're fucking great, just not in a way that saves all of fucking everything."
"Fernando, you want to accomplish the most good for the multiverse. So do I. There's a reason I didn't write these binders, even though I could have. I can't affect it now, I don't have magic that does interdimensional travel, there would be no point and if I tried I would spend myself and end up not helping anyone. Now, you spent months here. Has anyone else walked through that door since?"
"The last patron was three weeks ago. But security and infirmary are usually staffed."
"It will become rarer," he predicts. "The landlords did not intend for Milliways to be used like this, and however much I disagree with them, the fact is that Milliways is not an effective way of contacting other worlds and fixing them. The actual consequences of spending yourself here while waiting for a world in need to walk through the door is that you won't have enough you left to help anyone."
Fernando steels his face again. "I was planning to publish the books in hope someone else with greater power could do it."
Eriol tightens his grip on his staff then says, in Chinese, "O Wind, hear my prayer and do my bidding, send this self-destructive ass out the door," and swipes the staff between Fernando and the door.
Magic can't open the door to a world not your own - Fernando tried. He stays pressed against the door.
"I will leave. I have stuff in my room, and the binders can still help."
"Okay, then Thomas and I - if he wants to - can go get that. And you are not allowed to look at the binders until we say so."
"Good, Sadde and Kaede will want to look at that binder when they return." He closes his eyes. "And I am about to wake up."
"Sorry for that crazy display... look after your versions of my brothers? Make sure they are functional."
"They have three amazing people taking care of them, don't worry. Oh, and before I forget, the world I mentioned Sadde visiting with years-long winter was Westeros."
"Of course it fucking is. At least they are a ridiculously strong vampire."