As part of his relocation, Shun moves in next to Ruriko and her family. A.E.G.I.S. has assigned them with the task of investigating, as well as protecting potential Gate Keepers. To help him do this, the commander has given Shun some equipment which will enhance his gate ability.
Their first assignment is Reiko Asagiri, rumored to cause good visions to all those who listen to her piano playing. A preliminary investigation reveals Reiko to be lacking in certain mental aptitudes. Ukiya and Ruriko must come to the rescue when Invaders threaten the lives of people attending one of her piano recitals. Reiko’s true powers are revealed when forced to fight after Ruriko and Shun find the Invader threat to be more than they can handle.
Shun et Ruriko doivent enquêter sur une recrue potentielle: Reiko Asagiri, une jeune fille qui provoque des visions chez les gens lorsqu'elle joue du piano. Shun et Ruriko en font l'expérience lorsqu'ils assistent à son concert...