the drama is adapted from the novel of the same name by writer han sang-yun. it is set in the background of the air defense force in the high-rise building in seoul, telling the story of the desperate battle between military talent and his just-breaking girlfriend young-joo and the zombies.
based on the web comic of the same name, it tells the story of the heroine and the hero who met in the game in the early 2000s, and actually met and happened after they started love.
