Then the world lurched.

The first tremor hit without warning. A deep, guttural groan rose from the earth itself, and the apartment walls shuddered. Glass shattered somewhere. The lights flickered once. Twice.

He twisted, muscle memory overriding thought, and covered Y/n's body with his own as the building collapsed around them. Concrete. Rebar. Dust so thick it burned.

They fell.

The drop felt endless. Katsuki's back slammed against something hard, then another impact, then a sickening crunch as debris shifted and settled. His left arm caught between two slabs of concrete. The pain was white-hot, blinding.

Then silence.

Complete, suffocating silence.

When Katsuki forced his eyes open, darkness swallowed everything. Dust coated his tongue. Blood dripped into his right eye. He couldn't feel his left hand.