An older Cozy Glow at large disguises herself as a different pony and joins the Royal Guard. This is one day of many as she protects Flurry Heart and tries to learn her enemies. She's very grumpy.

One part of a prequel to Dawn Adopted
(You don't need to read that first. This could be standalone)
Warning: Mostly slice of life, not moving the story, very minimal spoilers for the above, present tense narration