The Kulay basin was built to endure, not to fight back. Agar's core missed the memo.

Four hundred slime girls live in this jelly-warm pocket of old magic — translucent, gorgeous, and completely unprepared for what's coming. They train together, tease each other about whose breasts got bigger after drills, fall asleep against each other at the fire, and maintain a barrier they don't fully understand. It's a good life. The kind worth protecting.

Then the Eukaryon empire sends an advance team to their doorstep. Not soldiers — something worse. A field unit with instruments and smiles, led by a commander whose sweetness has teeth and whose compliments are exit interviews. When their attention locks onto Agar's ancient kra-fragment, everything accelerates.

The fragment wakes up. It paints a target on her back. Worse: it's waking something in the other girls too. Bodies are changing. Cores are taking shapes they shouldn't have yet. Tiny versions of people are popping out at the worst possible moments. Old words nobody's said in generations are turning out to have power. And the quiet girl with the sea-green form and the too-warm smile has something inside her that doesn't belong to her.

Agar has a best friend who names the things she can't, a girl whose density makes her heart do stupid things, a mentor who's seen this before and won't say how it ended, and an entire community of slime girls about to discover they're a lot more magical than they thought.

Told in dual perspective — the basin's heart, and the crystal-armored operative on the other side whose kept face is starting to crack.

The Archaean way doesn't produce soldiers. But these girls are going to have to learn to fight their own kind — and look incredible doing it.