Also, since it's labeled "Ullu Original," which could imply a specific tone or style, perhaps it's an Indian web series or platform. Including cultural elements or settings relevant to that would add authenticity. However, since I'm unsure, I'll keep it general but vivid.

Aanya’s vision blurred. Memories surfaced of Dr. Mehta holding a vial of her blood, of Rahil’s feverish excitement when she recovered from the flu in ’20. They’d known.