[Rin listens to the explanation, nodding along as he does so. Quirks are basically superpowers, or so he figures, and passing Quirks down by family makes sense.

Marrying for power sounds kinda shitty, though.]

That's kinda...

[He trails off, not sure how to explain it. He doesn't want to call Shouto's parents shitty to his face, but marrying for reasons besides love seems silly to Rin. He's a bit of a romantic like that.]

...so wait, could that keep happening? Like, if you married a girl with two powers, would your kids have four? And would that keep going until someone had like a million Quirks?