First Humans Seen on Earth

These unnamed children were the first seen humans to have existed on Earth. Characters from the Seraph of the End series, they were produced by a homunculus who was working with Sika Madu. Regarded as cursed dolls made out of mud, their purpose was to gather darkness as Sika Madu saw that as a means of resurrecting angels who had perished on the planet.

Appearance
Created fully as functioning children, they all appeared the same age and were of the same build. Of the fifteen children made, many of them did not have appear to have hair. For the few that did their hair was short, yet varied in having light and dark-colored hair. Children had varied skin complexions, and there were male and female members.

Personality
There was mixed feelings shown for the few children whose expressions were seen. Two had questions as to where they were, perhaps understandably given they realized they were in a new world. Curiosity was also shown in children asking one another who they were. Some children were briefly seen crying at the new environment they were in, where others expressed joy where they generally came to be seen as being happy.

Prehistory
Although said to be cursed dolls of mud, and created, the children may have been formed as they are however they act as if they have life experience so give the impression they had lived elsewhere before being transported. After the first human seen on Earth had been dropped into the area by a homunculus named Yu at Sika Madu's behest, another one with light colored hair is produced shortly after. This second child like the first also had questions on where they were, and what was this place. The boy with dark hair ran over to excitedly ask who this other child was and the girl with light hair began to answer.

At least thirteen other children were dropped all one after another into the area. In total fifteen children were seen. As they considered what appeared a new environment to all, some children were crying as others began walking about. Unbeknownst to them, they are in mind as the target of having emotional traits such as greed placed in them. The children are to also have the souls of dead angels placed in them by Sika Madu and the homunculus.

Children appeared happy as angel souls were raised from their graves to collide into them. Affected all at once, the children paused as light radiated from their bodies. Where their eyes seem affected by a process of some sort, eventually the light faded and the children appeared as normal. Looking as if they were experiencing something new, based on the first youth's actions it would seem the children return to their previous activities.

Story
Where Sika Madu witnessed this event but was not seen to have told others, that humans were brought onto Earth by his powers used on a homunculus is something viewed by resorting to a demonic power of accessing memories. Living in the present time, Yu and Mika delve into memories that bring them to the prehistoric past where they see the children being produced. For the first boy created, Yu and Mika note his resemblance to Yu. While the second child with light-colored hair was felt by Yu to resemble Mika, it appeared that child was female.

Sika Madu
These children are brought into the world by Sika Madu, who has spent millennia burning after the seraph civilization that he was king of was destroyed by another humanoid angel and seraphs for attempting resurrection. Cursed as an undead and unable to touch light, the humans are a second choice (after angels that he is unable to create) he embraces as a means to gather darkness instead as a different method to resurrect angels who had been killed.

Not spoken to by him, the children would neither interact with him in turn yet would still be affected by Sika Madu. These first humans seen on the world were to be instilled with greed, and were to be ephemeral, melancholic, and strong for Sika Madu's purposes. What directly affected the human children was Sika Madu's directive to place souls of the dead angels inside them. They were apparently influenced to go on to breed and prosper. If these humans would proceed to be the ancestors of humanity then it was so Sika Madu could have many to gather all the darkness possible.

The Homunculus Named Yu
The children were generated from a specific homunculus, which was a dark spherical ball-like being that floated in the air. Dropping from it, they made no reference to this unique life-form in the area. Their nature and personalities would seemingly be influenced from the homunculus which acted on a light based contact Sika Madu placed on it. As humans it is possible that the reason children made no reference to what was a unique being was that they could not see it - the homunculus may have been invisible to their sight.

Seraphs
It is not known whether the human children knew what seraphs were. Coming into an Earth a millennia after a seraph civilization and all those living in it were wiped out, the humans were initially formed to begin with when Sika Madu found he was not permitted to create angels. While their cross-shaped grave markers were nearby, understandably given they had just arrived there, none of the children at the time investigated them where they could have learned of angel names that may have been displayed.

Affected by beings they may know nothing about, after having fallen angel spirits fly into them, the human children behaved as if considering a new environment for a second time. Appearing perplexed, where one child was analysing their hand, it is perfectly possible that the deceased angel souls were alive and active in new human host bodies.

Quotes
"Where am I? What is this?"

- The blond haired child's first words, who like the first human seen, speaks as someone transferred into this world rather than created as a life form.

Trivia

 * While there is a conversation between children on who the other is, the scene skips to another one and so details such as children potentially providing their names or intelligence of who they are is not shown. It could have shed some light on possible background information on them where they have supposedly been created and brought into existence at that moment.
 * None of the children react to a homunculus being there where the curiosity they possess would surely lead them to enquire about a floating eyeball-like being, more so that it is dropping more children into the world. In chapter 104: "The Same Dream" black suns were able to be perceived in a memory by Demon Mika, where Yu as a human at the time was not able to see them. Given the resemblance between homunculi and black suns, in addition to the human children here not reacting at all to one's presence, this may be the first indication that homunculi are invisible to humans.