What More Could I Want (Book #1) AOT Fanfiction *COMPLETED*

Prologue

Titans. Our greatest threat is known to man, other than man itself.

Titans greatly resemble nude human beings. They are bipedal creatures with the same number and arrangement of limbs and features one would expect in human beings. They are all deformed by human standards to a greater or lesser degree, ranging from minor abnormalities in proportions to lacking skin and subcutaneous tissues, although they do not bleed from such deformities, indicating that they possess some other mechanism to compensate for this. 

The vast majority of Titans have a masculine body shape, although all of them lack reproductive organs. They have no need to reproduce since they are humans transformed through unknown methods. Titans, almost universally, have exceptionally wide mouths with an enormous number of small, square teeth. Although some only possess canines, a majority of Titans lack them. In all likelihood, they have and use incisors for their primary activity: eating humans. Titans do not possess a complete or functioning digestive tract, and merely have a stomach-like cavity that eventually fills up with what they swallow.

Titans are compelled to seek out and devour humans for reasons currently unknown, as they do not derive any real sustenance from them. They did not taste human flesh for nearly a century after the Walls went up, but this did not affect their activity or numbers. Once a Titan has filled up its stomach-like organ with dead humans, it regurgitates them in a giant ball and continues eating more as soon as possible. Titans eat humans for no other apparent purpose than killing them. They ignore all other animals and any non-human forms of life. 

Most Titans have no intelligence at all and are simply mindless beasts, easy to trick, distract, or deceive. However, some Titans possess a vast level of intelligence comparable to or exceeding an experienced and cunning human. For example, the Colossus Titan displays acute intelligence, a trait not found in an ordinary Titan. However, although most Titans show no visible or audible form of communication, they are apparently aware of and able to deduce hostile intent from other Titans. Titans do possess the ability to roar.

The most dangerous aspect of the Titans is their unpredictability. They do not follow a strict set of guidelines and have seemed to increase in abilities and attributes as the series goes on. After the supposed breach of Wall Rose, Titans were seen moving in the dead of night when they should be inactive, traits they normally do not express. It has been theorized by Hange Zoë that since Titans receive sustenance from sunlight, the moonlight would also be sufficient enough, due to the moon being reflected sunlight.

The Titans' body structure and power source are very mysterious and they apparently violate several known laws of science, seemingly capable of spontaneously generating both energy and mass. Their extremely high level of activity and body temperature indicates the need for a massive intake of energy to fuel them, yet they never need to eat at all. They possess vocal organs and are able to emit simple sounds like roars and screams, yet they do not need to breathe. They do seem to become less active at night or if deprived of sunlight, and so it may be possible they draw their primary source of energy from the sun. Individual Titans seem to possess varying levels of stamina once deprived of sunlight.

Titans' bodies also seem unusually light for such large creatures and they are able to move at high speeds despite their size. Due to their size, Titans possess enormous strength and when combined with this lightness, they can put on amazing bursts of speed and agility. In addition to their size, speed, strength and large numbers, Titans also possess incredible regenerative abilities. The only sure-fire way to kill them is by slicing out the nape of the back of the neck. They regenerate lost and damaged body parts within seconds to minutes, including severed heads. Although, there are rare instances where the head will not regenerate if the nape of the neck is cut through or blown off. 

After death, Titan corpses rapidly evaporate to skeletal remains, then to nothing at all. How Titans react to pain stimuli varies from one to another. Many Titans will utterly ignore injuries which would be agonizingly painful to a human, such as losing limbs, being impaled through the heart, or having their eyes gouged out. In combat, some Titans will completely ignore armed humans who are attacking them, and simply proceed to attempt to eat whichever human is closest to them. Others seem vaguely aware of humans who are attacking them, and if injured will have a reaction that might be a pain but more accurately seems like the simple annoyance. Some actually do seem to react in pain and shout when they are injured.

Examination of test subjects show that no human body remains within the nape, but it speculates that the spinal cord operates as an organ separate from the main Titan body. As such, it is concluded that most Titans have completely absorbed the human within, leaving only the central nervous system intact as the means of controlling the Titan body. The method used to slay Titans is revealed to sever the upper vertebrae of the human 'pilot' or what remains of them, killing them via decapitation.

They love to feed and they are nothing but destruction no matter where they are, to themselves and us as people. Titans are a mysterious race of humanoid giants that appeared roughly 107 years ago and rapidly exterminated humanity to the point of near-extinction. Their origins, overall numbers, and their physiological workings still remain a mystery to humanity...