This is the heart-throbbing love story between a cool police officer and a confectionery student with a dream.

Rio is a vocational school student who is studying confectionery and recently, he's been interested in a cool and nice man who always takes the same train as him. He was having trouble getting on the packed train one day when he was helped out by that man, who he later found out is a policeman named Hasumi.

Since then, Rio has been spending every night pleasuring himself while imagining himself having sex with Hasumi. And now, when he meets Hasumi every morning on the full train, he finds his heart fluttering ever faster!?