Grudge: The Revolt Of Gumiho Vs. My Girlfriend Is A Gumiho: The Battle Of Dramas About The Nine-Tailed Fox BY Toni | Sponsored Insight Mar 12, 2015 10:43 AM EDT ′Gumiho′, the nine-tailed fox is a theme which appears almost every summer in dramas. In this feature, we'll check out two dramas about Gumiho which were aired in 2010 -- Grudge: The Revolt of Gumiho and My Girlfriend Is a Nine-Tailed Fox.