Human Link Between Paimon and Saito

This child was among others in being the first humans seen on Earth. Along with another child, he would be dropped into the world by a homunculus. Unknowingly involved in Sika Madu's plan to resurrect Angels, it is a possibility that this child was the carrier of Paimon's spirit. Accordingly, this child may be the link between Paimon and the second progenitor vampire known as Saitō.

Appearance
He was like many of the other children in that he was light-skinned. Also like all but a few of them, he had no hair. Above his large eyes he had thin eyebrows which made up his only somewhat distinct physical qualities.

Personality
Upon finding himself in a new world he was happy to announce he was here, where it was likely he did not even know where here was. While having an angel spirit fly into him he appeared unsure at this situation. Unconcerned with any of these experiences, the child greeted Sika Madu in a friendly manner and was curious as to who he was. Whether responding to Sika Madu's outstretching hand, or eager to explore without waiting for an answer, he was also direct in taking the arm of the youth nearby and saying for them to go and see the other children who were in the vicinity. With that he was overall friendly and sociable in involving and engaging with others.

Prehistory
Where a homunculus is producing the first humans seen on Earth, this child along with another are dropped out at the same time. Upright and cheerful, he speaks how he is here. After an angel spirit flies into him, he pauses a moment while registering the event.

Back to being happy again, the child stood and asked Sika Madu nearby who he was. His attention brought to another matter, he took ahold of the other youth's wrist and said for them both to go and see the others. Along with the child he fell into the world with, he ran off happily to see the other children.

Story
That he existed at all is something learned by Yūichirō Hyakuya and Mikaela Hyakuya of the present day via memory delving from their base near Mt. Fuji. His experiences are also seen by Saitō who is accessing Sika Madu's memories directly in the separate location of Shibuya.

The Child He Arrived With
Like this child they were brought to Earth at the same time. Where this other child was slightly quieter, he brought him along while guiding him for them to speak to other children around. If it is for certain that they are linked, then these two children would be close as Paimon and Bael were, as would Saito and Urd of later ages be.

Yu (Homunculus)
He was brought into the world by a floating spherical being known as a Homunculus, a specific one that was called Yu. While aware of others around him, it was striking he made no reference to this entity. Where Homunculus' are connected to Black Suns it is very likely that as a human he was unable to see what would have been invisible to him.

Sika Madu
Evidently he had no memories that Paimon had of Sika Madu who had essentially become the first vampire on Earth. Accordingly rather than warmly greet who would have been his Majesty, the child instead said nothing to him. As a human, he is involved with the First's plan to gather darkness in a different method of resurrecting angels who had perished.

Saito
Seen though memories by Saitō, there seems no way he would know one of the second progenitor vampires of the modern day. Assumed that this human child had the spirit of Paimon within him, at some point a human would become the vampire Saito is where possibly the angel spirit was transported to that point.