In the endless horizon of Phantagrande Skydom, countless crews of Skyfarers roam the sky, each with their own hopes and dreams. Among the strongest of them are The Eternals, a crew of 10 legendary warriors, a master of each of their own weapon. It is said that their power is so great that no one in the skydom can match them. Although their might is well-known in every corner of the world, not much is known about their past. Their Resolve, the main drive for endless struggle to hone the ultimate strength has yet to be uncovered. For Sarasa, The Master of Axe, to be the strongest is everything. To eat, or to be eaten, is the resolve that kept her alive. But to survive is not her goal. Her desire is to be the strongest, so strong that nothing can eat you. Before she becomes the apex predator of the sky, she will not stop striving. As this is the promise she made as far as her memories can recall. In the reminiscence of the long days of struggle, she prays.