The story begins on planet Destiny, which claimed to be where the center of the Universe is, where all the terminals of "The Galaxy Railways" are gathered. The main character, Yuuki Manabu (20 years old), carrying on his dead Father and Brother`s will, joined SDF (Space Defense Force) to protect the safety of the Galaxy Railways. SDF, in order to uphold the reputation of maintaining the best transportation schedules within the Universe, deals with accidents, natural disasters, rescue operations, space pirates along all lines of the railway. Layla Destiny Shura is a mysterious beauty unifying SDF and all lines on The Galaxy Railways.