Hibiki Otsuki stars as Emi, a brilliant and elegant beauty who has vowed never to depend on any man, yet finds herself quietly lonely. One day, returning home from work, she discovers a mysterious incident—a beautiful young boy collapsed in front of her house. She takes him in, deciding to let him live with her as her pet. Though he appears adorable and innocent, he's actually a predatory wolf in disguise, constantly teasing her with lewd pranks. Living with him begins to drastically change Emi's once-ordinary life.