[kuroishinigami]

Originally Posted by Xacual

Spoiler for US and Russia:

US rep is in her 20s and has already graduated from the US IS academy. We'll meet her near the end of the series. Russian rep is a second year at IS academy, we'll sadly probably not get to see her in this season. She's the strongest in the school. Russia's rep is Japanese but because she is the best she basically had offers for countries wanting her to be their rep.

Just remember that most of the representatives we see at the school are just candidates for the position. The official rep position is unlikely to be held by a student, I think there is only one student that holds the rep position instead of being a candidate.

No no no. US representative is only introduced in vol 6 named Elly. The IS she's piloting is based on Rin's Shenlong, although more advanced(forget the name. Check my summary for the IS name). Silver Gospel's pilot is not US representative, she's just part of the US army, and thinking that IS academy is the equivalent of high school, those students would most likely graduate around age 18 so already graduate from academy at age 20s is normal.