De Gu! Comi: On a distant planet of the Delice, adolescents are credited to the education system, like no other: a mobile travel made on board the train. There are standard school trains for general training ... And then there is a special train, a special institution, whose students receive anything other than normal education. Reiichi-student, pleased that she obediently follows the tips, which are presented to him ... But when Arena, a rebellious girl with a mysterious past, goes on stage, her life is completely breaking! Eviating the persistent investigator for the arena, Reiichi and his incomplete crime partner are experiencing a school year that will never be forgotten.