Believing she is the heroine of a regret novel, a woman asks her husband for a divorce, expecting it to finally begin their romance. Instead, he agrees immediately, leaving her with an old mansion as compensation. Determined to enjoy life as a landlady, she soon finds herself dealing with troublesome tenants, a suspicious caretaker, and unexpected problems. To make matters worse, the ex-husband who coldly accepted their divorce suddenly appears at the mansion. Why is everyone gathering around her now?