Truiden is the Second Prince of Navea and is expected to marry a princess of another kingdom to expand his. However, despite his royal status, Truiden sees himself as a normal villager and is often seen wandering around the town he lives, in helping out people or attempting to flirt with girls. He is supposedly betrothed to Orphelia - a commons girl - due to her beauty and grace, but the plan is ruined when he finds out that she had passed four years ago. Instead, Truiden sought out Orphelia's twin, Auraline to pretend to be her for the time being.