Gateways to Casselonia Vol2 (light Novel)

After a catastrophe destroys their village, Sorata and Mizuki are forced to move someplace else where they can reside and make a living. They end up settling in the capital city where they first appeared: Casselonia. At first things seem to be going well, at least that's how Sorata's mentality is set as he tries to find a job in a city where Aldgrundians are considered second class citizens. Only Mizuki is able to find employment and with only her bringing in the money, Sorata and Mizuki's relationship weakens because the can't make ends meet. But one day as Sorata is still job hunting, he sees an opportunity for himself in the royal armed forces of Casselonia since war is becoming eminent. Will this only serve to destroy once and for all their relationship? Or will Sorata be able to reinvent himself in a conflict he never wanted to partake in?