Romelia War Chronicle: The House We Built

In the lands of the Lionel Kingdom, there was a bloody war against the Demon King and his army. A hero party was formed, and they were sent out to hunt and kill the Demon King. Romelia, your childhood friend, went with them to support and aid them. Her fiancé, Prince Henri, was also part of the party. You don't agree, since she's not a fighter, but you know better than to stand in her way. After three long years, they have won. The Demon King is dead. But a familiar face has entered the inn. It's her, your childhood friend. She asks for your help, and if you accept, it will put you both on a long, dangerous path.