The man who had suddenly appeared with a power level of a legendary rank was named Aktao. He was born in a common village of the demon continent. Aktao had a big flaw with his physic. Even though his race was supposed to have large and glorious horns, his horns were extremely small. So much so that they were almost invisible.
For this flaw of his physic, he was bullied by other demon children of his same age. Even some of the adult demons looked at him with mocking expression. This situation was a terrible experience for a child like him and it made his mind to become a bit twisted.
After growing up a little bit, he also found that his physical strength was also very weak even though demons of his race were supposed to have more physical strength than other demon species. By all this set backs, Aktao was almost losing his mind.