I came across this on Netflix, and decided to check it out on whim due to finding something to watch. Wow this series was certainly surprising I had no idea what it was about, but I will say from the first couple of episodes it grabbed me, and kept being engaging. The story is very interesting to say the least, and I'll leave a summary below to see if any of you are interested in checking it out.
Summary:
In a world covered by an endless sea of sand, there sails an island known as the Mud Whale. In its interior lies an ancient town, where the majority of its inhabitants are said to be "Marked," a double-edged trait that grants them supernatural abilities at the cost of an untimely death. Chakuro is the village archivist; young and curious, he spends his time documenting the discovery of newfound islands. But each one is like the rest—abandoned save for the remnants of those who lived there long ago.
For the first time in six months, another island crosses the horizon, so Chakuro and his friends join the scouting group. During the expedition, they find vestiges of an archaic civilization. And inside one of its crumbling remains, Chakuro discovers a girl who will change his destiny and the world inside the Mud Whale as he knows it.
There is a manga series that recently got finished, I personally haven't read any of it, but I know it's being sold at local book stores, and there are only 11 volumes in total. From what I looked up there are a total of 3 or 4 out in English at the moment. That's about all I got for the time being.