Tobir does not know how to explain what is wrong with this. It sounds like she's saying people who do unclean work don't just... get stuck being unclean? But that's not how it works! 

"And... they just work with their hands?" Maybe everyone uses remote controlled robots or something.

"Yes? Is this... a problem?"

He fidgets, "Not a problem," He says. So long as they really are cleaning up after...

The problem is, are they telling the truth? But... why would they lie about this? 

He glances at Kenta and then at Heri. Touches his hair. "Should... should we just..." explain?

Heri holds tightly on Ken's hand. "We should... just ask more..."

"...Doing dirty jobs doesn't make a person dirty," Angel says. "We have prejudices, back home, but they're not about uncleanliness."

"Your world still have... that sort of thing? What is the technology like?"

Tobir is too overwhelmed by the idea that they don't think uncleanliness is bad to answer this question. 

"No one in our world thinks people who work with garbage or sewage or," what else, "Death are unclean or bad." She looks the three of them over, "And certainly not their kids."

Heri breaks contact with Kenta to hug Tobir.

"That's... awesome!"

"Thanks." If he is understands what Angel figured out... these are untouchables, or something close.

"What is the technology level in your world. Like, do you have vaccines? electricity?"

"Yeah."

Hug. Also, cling.

"You really don't think it's bad? Really?"

"No, we don't," Angel reassures him, slipping out of Alex's hold to kneel down closer to them. "You and your guardians will be safe from the kind of prejudice you face in your world in other worlds."

"It's- they- they hate us. The clean castes. They hate us and they're working on replacing us and then they'll kill us. I can't leave forever cause I've gotta do something. It's not enough if we're the only ones who are safe."

"Oh, no. Okay... as Angel said, we can get you out of the situation, and we can help you find a solution."

Nodnod. Continued cling. 

"Do you want to go get your guardians, now? Your Uncle, at least, until we have a way to get your Aunt without breaking any walls." 

"Mhm." But he also doesn't want to let go of Heri again. 

"You might take a moment if you want." Felix tells the kids, to Angel. "I can get through walls with some prep, but it would still involve a... removing the wall."

"There might be someone in the bar who can do better," Alex suggests. 

Taking a moment sounds good. 

(Would Kenta like to join the hug?)

Sure, hug. He pats his cousins on the back.