Senel Coolidge, a young expert in the special skill called "eres", was drifting in the misty ocean on a small boat with his younger sister Shirley. As food ran out and their strength deteriorated, an island suddenly burst through the mist and approached the boat with astonishing speed, engulfing it with perilous waves. When Senel and Shirley awoke on the shore, they realized this was no ordinary island. Its surface was covered in lush forests teeming with life, but despite its appearance, the ground that stretched out before them was actually an enormous ship called the Legacy.
