A multi-star system where at least one star is almost always in the sky. They'd never see other stars, and their estimate for how many stars exist would be wild

A multi-star system where at least one star is almost always in the sky. They'd never see other stars, and their estimate for how many stars exist would be wildly off. And if there ever were a moment where all suns set together, they'd be overwhelmed. (There's a scifi story like this, I think it might have been from asimov, but I'm not sure)