[From the creator of Itaewon Class (이태원 클라쓰)] Industrialization has begun and the Earth's temperature continues to rise. At this rate, the earth will perish, but no one cares. Kang Maru, a genius boy, tries to save the earth. "Execute the project 'Holiday'." It is for the sake of all mankind, Kang Maru does not choose any means and methods. [MU]