The plot of Marine Express can be described in two parts. The first part focuses on the people boarding the train and the problems they encounter on it. The second part takes place after the train has stopped at its half-way point, an island that used to be home to an ancient civilization millennia ago and has its fair share of secrets.

It tells the story of Rock, a puppy whose mother is killed by a tiger and a fox. To fulfill his revenge, will achieve together a large number of animals. An animated collaboration between Osamu Tezuka and Toei Animation.

Hezarfen is a historical Turkish character. The story takes place in 1632 in Istanbul, where he will attempt the first flight of the human being.

Suguru Koshigaya, the brother of Komari and Natsumi, wins the grand prize in a lottery draw. The prize appears to be a ticket for four to Okinawa. As the girls are nervous for their trip, they prepare for their journey. This OVA was bundled with the 7th manga volume.