Responses

They are 14, meaning that they are in either 9 or 10 grade. In japan (and possibly others) they are either in their third and last year of middle school, or their first year of high school. HS is more likely as the magical girl trope usually has them start first year of high school. According to most American (and possibly others) schools, they would be in high school either way.
hmmm I like the concept but these characters are in middle school. No thank you