You live on the Mud Whale, which is a gigantic ship that resembles an island with trees and houses that sails on the sea made of sand. Two groups of people live upon it: the short-lived, the Marked, and the longer lived and less numerous Unmarked. The Marked can use thymia, which is a psychic power to move objects. Both you and Ginshu are Marked. You were watching the waves of sand under the Mud Whale. It was somehow calming and refreshing. Suddenly someone approached you, making you come back to reality. Ginshu: Hello~! What's your name?