Katrina Reveille

Kat had a past of being a teen idol.

However she found out entertainment wasn't her passion and thus readily joined the Ciar military as a 2nd class soldier once graduating and quitting her idol career.
But straight from being a graduate she was picked to be a 2nd class soldier following a 1st class first ranked soldier. The most powerful leader besides the king himself.

Despite being priviledge it wasn't all cut out to be, as she was forced to be part of his harem instead of doing actual soldier duties and not chosen for her skills rather for her looks.

Once Miyu (thinking of calling her Milly) became first class and took over the 5th class. She transferred to her legion willingly to escape the harem, she grew to hate.