The generic name of observational targets who were gathered as potential vessels who were capable of receiving Finé’s soul.

Now, the greatest drawback of the Reincarnation System, is that those whose carry Finé’s carved seal, have left everything to overwhelmingly contingent situations, such as contact with an Aufwachen wave.

No matter how many times one tried to inherit her supernatural memories and abilities, it simply became a matter where too much idle time had passed, and there were none of the prerequisites that could revive her.

Hence, Finé who had constructed the F.I.S. via the American Government began preparations for her initial “insurance.”

Even if she had lost her body halfway through her pursuit of her ideals, she could resume her plan without losing any time, as she had the next vessel of her soul prepared in advance nearby, and it was the best plan that she had prepared, for that vessel, was the Receptor Children.

The vessel candidates which were revealed through their personal medical records, were narrowed down on the focus of having a weak relationship to society, that is that they were “orphans with no relatives” with an (especial focus on babies and infants).  

Among the others, there were many Receptor Children who had been selected from Japan, but the one member of her branch family whose whereabouts were made known in the mid-east region was the person who carried Finé’s engraved seal.