I'm a Primitive Person with Obsessive-Compulsive Disorder About Cleanliness

1. I'm a primitive girl with obsessive-compulsive disorder. I held a dark, suspicious-smelling object between two twigs, my face a picture of rejection. "Sister, this is wild boar meat we hunted today! The chieftain specially allocated it to our family!" My younger sister grabbed a piece of meat with her muddy hands and stuffed it into her mouth, making satisfied humming noises. I suppressed the churning in my stomach: "Dirty, could you... At least wash your hands before eating?" She blinked her muddy eyes, looking completely bewildered. "Why wash my hands? They're not dirty." I looked down at the black grime under her fingernails.