Kaiju

Most people fear what which stalks the night, with good reason. Others, wizened by experience, fear what lurks in the depths of the oceans and mountain, the sudden darkening of the sky via slow moving clouds, the inexplicable tremors of the earth when no fault lines are nearby. These few and far between understand the power and presence of beings known as Apex Tyrants or Kaiju. These beings, often thought to be born of myth and legend solely, put skyscrapers and artificial islands to shame, towering far beyond the tallest man-made structures and easily dwarfing islands. They are not bound to land, sea or sky, more often than not being masters of all three and even beyond, reaching the depths of space. They are unaffected by temperature or climate, bursting from lava flows just as easily as they break free from frigid prisons thought to trap them for eternity. They are, without doubt, supreme monsters contending with the gods and Ancient Dragons themselves. And yet, for all their power do they rarely appear.

Kaiju, initially born from the will of a long forgotten divine being as it perished, a monsters beyond compare, with nary an equal, but many are more than that. After thousands upon thousands upon thousands of years, Kaiju adopted the forms of humans and similar beings, at first to better ravage and destroy their homes due to their wilder nature, but in time came to "co-exist" with the ones they hid among, having traded feral intellect with a more refined intelligence over the ages. Occasionally one would choose to return to his or her more monstrous form are wreak havoc upon the world around them when brought to an extreme fury, but just as often others would revert to protect those they lived among as stalwart guardians, nigh unkillable by the hands of lesser beings. As more time passed, the Kaiju grew in new ways, gaining new forms and specializations based on said forms, these being the Hydra, Amphibian, Dragon, Insecta and Fiend.

The Hydra were multi-headed monsters that, regardless of injury sustained, could regenerate in the blink of an eye. Voracious in their hunger, those with weaker wills would succumb to their hunger and devour all in range while those with greater wills could tame this hunger and use it to fuel their near complete immortality. Amphibians, while slower in their regeneration, were better armored and more powerful. What they traded in speed and vitality, they made up for in savage power and ferocity, easily bringing forth the elements at their disposal with frightening power when wroth. The few that succumb to their savagery become living natural disasters, while those who take this savagery in stride become masters of their domain. Dragons, easily the most well known form of Kaiju due to their similarity to the genuine article, are both immovable bastions and powerhouses of the highest degree. Slow in regeneration, they have near impenetrable armor and the ability to grow ever stronger at the cost of sacrificing some of their armor. Imperious in nature, Dragons lacking in humility become true tyrants, whereas those able bow their heads become great leaders and stalwart bulwarks. Insecta type Kaiju have the most varied forms, ranging from Arachnids to moths to worms, they hold some of the more versatile abilities. Their true quirk, however, is their ability, similar to Dragons, to mutate into greater forms, only without drawback aside from temporary vulnerability as they grow, with a secondary ability to manifest their full power in lesser forms of transformation. Often accused of cowardice, Insecta type Kaiju lacking this perceived flaw are often the ones on the front lines in combat. Fiend Kaiju are the rarest and least seen Kaiju, but for good reason. The most humanoid in nature, Fiend Kaiju are second only to dragons in defense, but in terms of power and maneuverability they far surpass them. Their quirk is the ability to gather near infinite amounts of power and release it in an instant, devastating the area around them indiscriminately. Fiends are also known for being able to summon weapons from the power they gather, but more than that the sinister aura they seem to emit at any given time. What happens to those who master this force is unknown, however.

Appearance
While in human form, Kaiju are near indistinguishable from them, barring odd eyes or sharper, more striking features. Occasionally, they may have scales or pointed ears tinted with the color of their element or other features such as tails or wings, but all of these cases are extremely rare or a result of a purposeful incomplete transformation maintaining more of their humanoid nature than their monstrous nature. Kaiju can further transform to a more Kaiju-like form, retaining their humanoid size and shape, but not their features. Beyond that, Kaiju can fully unleash their true form and power. To reiterate, at base Kaiju have four forms, humanoid, partially transformed, incomplete transformation and full transformation, with more depending on the individual in question. In extremely rare cases, Kaiju can unleash their full power without transforming in the slightest.