As the heir to the Yooshin company, Yoo Taehyuk is living his best life. However, everything changes when he is informed that the dragon, the protector god of the Yoo family, wants to leave them to be with his partner. When his sister was asked to take a risk for the family and announce herself as the dragon couple, Taehyuk stepped up instead. He agrees to meet the dragon in hopes that he can convince him to stay. But will Taehyuk manage to creep into the good graces of the invulnerable or beneath his scales dragon?