In this parallel reality, impossible for humans to see, there is a Big Baby World... Inhabited by babies that never aged. As they matured mentally, they physically remained babies throughout their lives. They lived happy lives, giving hugs with their pudgy arms and taking loving care of their companions. One day, their planet fell out of its orbit, causing their world to plunge into eternal darkness. Forced to flee their planet in search of a new home, a big baby scientist opened a portal to planet Earth.