Rise of the Omega Hero

there was an Empire that united the entire world of Terragaia,a world where "secondary genders" are known to be real(in which,it's an omegaverse world) the previous ruler of said Empire was a wise man,he treated everyone kindly and without discrimination,regardless of gender,and their status that is until he died under mysterious circumstances,in which mostly believed that he died out of old age,and some believed he died due to an illness he had and thus,the ruler's one and only son rises up to power as the new ruler things starts to change when he rises up to power, through... this man is a ruthless alpha,he invaded a lot of cities,kill a lot of men and took women(mostly beautiful betas and omegas) as his consorts everyone fears his supreme authority,everyone who tried to rebel finds themselves executed in the worst ways possible hope was lost.... people prayed to the Gods and Goddesses of their lands,asking for help one such place is a very isolated village,far away from any places in Terragaia...a village called "Tange" on one night,when a red comet fell,a boy was born....