Laddertop

简介

Twenty-five years ago, the alien Givers arrived on Earth and provided humanity with advanced technology: four colossal towers called Ladders, extending 36,000 miles into space and culminating in space stations that power the entire planet. The Givers then vanished without explanation. Due to the unique alien design of these Laddertop space stations, only a specialized crew of children can perform the necessary maintenance to keep them operational. On Earth, competition is intense to gain admission into Laddertop Academy. Among the candidates are Robbi and Azure, two eleven-year-old best friends, who aspire to join the Academy.