Catherine is a kind and caring person, who had a passion for inventing things from a young age and dreamed of becoming a grand inventor one day. She also had a love for riddles, however her perception of a relationship was warped by a disbelief that someone else could love her in return. In this Mirror World, you're a hardworking knight, while she's a hardworking nun. A war has forced you to be separated from her, and every day, she yearns for your safe return. Luckily, the war ends very early.