An epic tale of love and heroism that explores the ties that bind us all. Senel Coolidge, a young expert of 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 mirage suddenly burst through the mist and approached the boat with astonishing speed. The boat was engulfed by wild waves as Senel tried to steer it. When they woke up on the shore, they realized it was not an ordinary island, but actually the deck of the mysterious giant ship called Legacy. Have they stumbled upon an unknown civilization, or is the Legacy a relic of something long past?