Abe no Seimei.
The great onmyoji who ruled all of Kyoto during Japan's Heian Period.
The founding Head of the Corps of the Gokadoin Clan.
Knowledgeable in astronomy above and geography below, versed in yin and yang, and masterful in politics.
And in this world, Abe no Seimei was Hagoromo's son.
In other words, like Inuyasha, he was a half-yoma.
Abe no Seimei's original ideal had been to acknowledge humanity, protect the yoma world as well, and create a society where both sides could coexist harmoniously—a city where yin and yang blended perfectly.
For a time, he had achieved that goal.
He had been active among the upper ranks of the Shogunate as the head of the Yin-Yang Bureau, while also becoming the lord of all evil spirits through his invincible strength, governing the tens of thousands of yoma and demons around Kyoto.
But even that could not withstand the passage of time.
His half-yoma bloodline gave him a longer lifespan than ordinary people, but it was still not enough.
What he wanted was eternal life, so he could preserve the society and order he had created.
At the time, Abe no Seimei had yet to create the Taizan Fukun Rite, which could grant immortality.
Instead, he began researching the most forbidden of taboos: the soul-returning art, which could bring the dead back to life.
But the soul-returning art had always been flawed and could not produce the perfect result he sought, leaving him no choice but to abandon it.
Later, he found inspiration in his own mother, Hagoromo.
It was known that after death, a person's soul entered the cycle of reincarnation and was reborn.
So long as he ensured that his soul did not enter reincarnation after his death, but was instead born again from Hagoromo's womb—
Wouldn't