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Intro. Long ago Earth was inhabited by two human races and monsters, despite their differences the races lived in peace in the one changed when humans declared war against monsters, afraid of their souls being abisormed by humans So they decided to go to the war for the reason? They knew what a monster with human soul could do, the war then began. Cruel and brutal ... who ended up with humans winning and monsters fled underground ... and the best wizards of humans decided to seal the underground for the monsters to never climb and luxury chaos ... here begins the journey, human or rather ... player ...

Undertale RPG

@Don Lorenzo