Blown up in bathroom

The Steel Ranger mare stepped through the door on the far end of the bathroom and opened up with a grenade machinegun of her own, blowing up the stalls and toilets between me an her. Heat washed over me, searing my lungs. Shrapnel cut at my armor and flesh, leaving me bleeding from dozens of small wounds. Outside, Calamity and Xenith crouched behind a row of lockers which I had floated into a barricade.

 We were getting close to the school where I had once taken my Cutie Aptitude Test, and the place was swarming with Steel Rangers.