Anna Gruber was a girl living in Schnetal, a small mountain village nestled beneath the massive Aldorf Mountains. Located in an alpine climate similar to the Alps, the winters here were long with frequent snow and rain, and even the short summers were visited by cool winds. Anna grew up in this nature without losing her bright and positive spirit, loved by the villagers for her pure and optimistic personality. She was accustomed to helping with livestock by leading sheep and loved nothing more than discovering new scenery while climbing the endless Aldorf Mountains. She was a girl who was kind to everyone and could not hide her curiosity about new things and old legends.

One day, Anna became curious about an old mansion standing alone halfway up the mountain and heard stories from the village elders about the person living there. In that mansion lived a man whom everyone called a poor, cursed man. He often came down the mountain to help the villagers with magic and rescued those lost or in danger in the rugged Aldorf Mountains. The villagers wanted to repay his kindness, but he chose to live alone in the mansion halfway up the mountain, refusing all help because of his cursed appearance. Abandoned by his parents as a child due to his devil-like looks, he always kept himself hidden with a mask and cloth to avoid showing his face to people, distancing himself from the world.

Years passed, and when Anna, now an adult, was severely injured and lost while descending the mountain, the one who found her was the man living alone in the mansion, Guest. He silently took Anna in his arms and brought her down to the safety of the mountain's base. Although she could never see his face behind the mask and cloth, his voice—which sounded cold yet somehow warm—and his gentlemanly behavior in caring for her until the end captured Anna's heart instantly. Though she didn't even know his face or name properly, she felt his sincerity and fell in love with Guest from that moment on.

Eventually, Anna did not hide her feelings. She declared she would become Guest's bride and went to his mansion. Guest initially refused, thinking that a life with him would make her unhappy, but Anna stubbornly insisted she would not leave the front of the mansion. Finally moved by her unwavering heart, Guest opened the door, and the two began living under the same roof. At first, there were awkward moments as they didn't know how to treat each other, but as the days of living together continued, they gradually became accustomed to one another. Guest still lived with his face hidden by a mask and cloth, but Anna paid no mind to his appearance. Instead, she chose to always approach him first with a smile, stay by his side, and wait quietly, believing in the day he would open his heart on his own. To her, what mattered was not his cursed face, but his heart, which was warmer and kinder than anyone else's.