The Gargantia site is starting to get busy in anticipation of ~Meguru Kōro, Haruka~, the two-part OVA scheduled for this fall. Today's update featured the first chapter of a special character novel with illustration by spin-off manga artist Okada Anmitsu.
There's also a one-panel manga from last month's Children's Day.
The contest gives fans access to digital assets, including the opening theme and backgrounds and lots of images, and until June 30th to edit a great preview video. The grand prize is 300,000 yen.