i be a sucker for post apocalyptic event film and and will cut them a lot more slack than other hollywood fare . however and dragon head have make me very wary of ever return to the genre . what a waste of celluloid . no story and no character development and poor effect and and a male lead who wander about clueless from start to finish . most bad film leave you bore or listless while with dragon head and i be shout at the tv screen and it be so mind numbingly stupid . some kind of apocalyptic event have take place while the protagonist be rid the train . what be this event . how do it come about . we be never tell . how do the survive male and female high school pupil come to term with this event . they do not . how do they grow and mature and change through the film . they do not . they just wander from one bizarre scenario to the next ( from a town where the youth have turn on their elder and to a bunker where everyone be eat drug food ) without any causal relationship between the stage of their journey or the event they encounter there . i suppose some kind of lord of the fly metaphor be imply by the boy savage who menace the lead in the first third and but without connect this to why civilisation have end and why people be react the way they be and the message go nowhere . a script as poor a this should never and ever have be make . sayaka be a good actress and a she show with a nuanced performance in the short film bean cake and but even she can not salvage this . this film have no save grace . not a single one . it get one star and because i be not allow to give it zero .