Having lost his parents at a young age the Imugi Lee Seo-woo was raised by tigers. Once and adult, he begun his training in the human world to fulfill his long-held wish of ascending to become a dragon. It has already been been 10 years since that day but the end of his training is still nowhere in sight. During this time, an unexpected reunion occurs when his longtime friend Beom Ji-ho suddenly comes to take him back to Taebaek, leading to a rather peculiar cohabitation.