Yang Yoseob is a 110 year old gumiho, aka nine-tailed fox. He's been living and blending in with humans for around 85 years. He's never been suspected and doesn't ever plan to be until he loses his most precious item, his phone. What he has isn't just any normal phone, it holds the entire network society of all magical beings. He has all their profiles and pictures. Their real forms and their other forms. For example, some are changed into other bugs or animals but usually human beings. After a few days of searching he finally learns that a human girl named Lee Jieun, aka IU, has his phone he sets off to find her. What will happen to his phone? Will anyone find out his secret?