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The Kaiju are a strange race of creatures from another dimension. While they never play a major role, they have appeared in several Alicesoft games.
They are a lizard-like race that possess naturally thick, resilient skin that allows them to thrive in hot climates as well as give them great defense against both physical and magical attacks. Males of their species have different skin colors depending on their position in society, with common civilians having brown skin and the royal family having green skin. Female Kaiju differ greatly in appearance, closely resembling human women with pointed ears, though they retain their species' distinct tails. While they are generally quite short, with most only reaching about 100 cm in height, the stronger members of their species can be much bigger, with their King being 300 cm tall. Their mannerisms are largely identical to those of humans, though notably every member of the species says the word "gyah" at the end of their sentences.
In addition to their thick skin, they are also incredibly strong, with even an untrained Kaiju being much stronger than the average human. They also possess a natural affinity towards the Magic Arts, and their strongest spell casters rival level 3 magic users in skill. The strongest Kaiju far surpass the strongest humans in ability, with the Kaiju King rivaling lower-ranked gods in power.
While they rarely have to fight, their army is large and well-equipped, with weaponry made from strong materials found only in their dimension. Kaiju soldiers always fight seriously and have keen tactical minds that make them highly effective fighters. In addition, the royal family have domesticated the exceedingly fast Troy race to use as steads in battle, boosting their effectiveness even further. Few other armies could even hope to compare to the Kaiju in military greatness.
They live in Kaiju World, an arid continent inhabited solely by monsters and ruled by the benevolent Kaiju King. As they are free from gods and other races to create conflict for them, the Kaiju succeeded in uniting their world and live in relative paradise. They lead lives closely resembling those of humans, though they are far more technologically and magically advanced, being able to fly through the air and travel between dimensions with relative ease, two feats that would be considered legendary by humans.
Despite living in peace, the visions of their spiritual leader, the Kaiju Priest, have allowed them to observe the poor treatment monsters receive in other dimensions and has caused great unrest within their society. In an attempt to rectify this, the Kaiju King sent his son and daughter, aided by their race's army, to travel across the other worlds to free the monsters within them from oppression. It is because of this that they often fall into conflict with humanity despite being entirely benevolent.