In the beginning of the story, Amber collapses due to the attack from Incarros. Shing, worried about her, goes inside Amber's heart with the help of his Soma. When he enters her Spir Maze, Shing meets Richea, the girl who makes Amber as her vessel. When Amber's Spir Maze is attacked, Shing fends off the attackers with a dark aura, which causes him to be to be thrown out of Amber's heart and her Spirune to be shattered. Her Spirune scattered over the world, leaving Amber emotionless. Feeling guilty and wishing to see Amber's smile again, Shing resolves to go all over the world to retrieve Amber's Spirune.