

Richard, a broke, sharp-tongued black-market vet, gets evicted from his rundown flat and is hired at an astronomical rate by the mysterious noblewoman Catherine to be the night keeper of Ashford Manor. His plan is simple: coast through the shift, collect his paycheck, and get out. But when he stumbles into a forbidden zone to save a mortally wounded Abyssal Royal Squid, he inadvertently completes the seal on an S-class calamity—and the overflow magic floods straight into him. Suddenly, the entire world thinks some legendary hidden powerhouse just obliterated the disaster. He keeps healing beasts for the money, but the more he heals, the stronger he becomes, earning him an A-rank agent badge from the DMTC. As he digs deeper into the manor's secrets, he uncovers the horrifying truth—this is no mansion, but a crumbling prison built on the souls of fourteen ancestral guardians, barely containing thousands of calamities. And he has been chosen as the sole heir to inherit their power and end a century-long nightmare.

On their wedding day, Betty Gibson, an architectural designer, was shown a video of her groom Justin Norton cheating with her best friend. She broke off the engagement on the spot. To get back at him, she decided to marry Justin's disabled uncle, Jason Norton. After marriage, Betty learned that Jason had trouble walking and lived in poverty, so she worked hard to support him. In reality, Jason was the CEO of the famous Morgan Group, pretending to be disabled to investigate a fire ten years ago. Though it was a contract marriage, he walked a tightrope every day to hide his identity. As they overcame various crises together, Jason became increasingly drawn to Betty, and love began to blossom. However, as their relationship deepened, the truth about the fire ten years ago was revealed. The mastermind was none other than Jason's brother Jeff Norton, and the person who saved Jason's life in that fire was Betty herself. In the end, the villains were brought to justice, and the two lovers who cherished each other finally found happiness.