A gay version of the classic pink "Groper Train" series. A high school boy gets onto a crowded Hatten train and encounters a man who molests him. He awakens to the taste of men and the scent of his father, whom he had forgotten after passing away at an early age...
A salaryman sees a murder in the subways and is soon pursued by the killer, who wants him to join a group called The Engineers, who have taken it upon themselves to reduce Japan's overpopulation. Despite not wanting any part of joining, the man begins to mutate, running throughout Japan and...
