This reminds me of a little girl I knew who is not little now.. she had a disability, and she would frolic just like that and never know that she did wrong until you yelled at her. :)
I took it more as her having done something she thought was right or morally justified but is actually against the rules. The grammar is a bit rough throughout, leading to some bits being hard to follow. In particular that second sentence is really rough, and the first sentence of the second paragraph reads as though the secretary was daydreaming about an award, which is entirely possible, but I think you meant that clause to go with your protagonist.
Interesting, interesting… at first I thought the story was going to be about someone going to the HM’s office for a good reason but then at the end I was left really intrigued and curious about just what Meryl did. I might just have to sequel this one.