Neuss

Neuss is basically the responsible older sibling of the Cities. They have a long history of working in the military, even before meeting Rome. They are very skilled at fighting and have helped Rome fight many times. They're very professional and calm, outside of the battlefield, where they can be very aggressive and ruthless. Their drive to protect their family stems from their fear of others and themself dying, although everyone is safe now. They spend a lot of time honing their skills with their custom handgun, turned into a magical one by Ephesus, that shoots geometric shapes. When they aren't doing that, they're probably hanging out with the other Cities, especially Ephesus, as the two are good friends. Neuss has the confidence Ephesus always lacked, and Ephesus is very innocent and gentle, something Neuss admires but could never truly be.