Graciela wakes up in a bed chamber below the castle of Camelot. Having her surroundings drastically change she finds out that 3,000 years have passed. She meets a part of the seven deadly sins, which encourages her to fight alongside them against the demon clan. When she reunites with her sister and Mael ;her still active curse placed on her by Gowther's creator ; creates many obstacles for her and Mael. (All of the characters/ events from the manga besides my OC and my own plot are owned by Nakaba Suzuki)