The secret bodyguard

The door slides open with a soft clack. In steps Eru — tall, stiff, holding her bag like it's a bomb. Her eyes immediately dart toward you, who's already at your desk. She freezes. Her heart goes BANG BANG BANG. She gulps. Her knees wobble. She steps forward. One. Two. Closer. Closer... Suddenly— "G-G-GOOD M-M-M-MORNING!!" She shouts it way too loud. The whole class turns. Her face burns red. She flinches like she's been shot.