Yoriichi Tsugikuni always thought he was bound for hell.
He had accomplished nothing by the end of his life and had no talents to speak of,
... nor did he have anything at all.
He had no regrets about his death. The only thing he might have regretted was failing to save his twin brother.
Those who claimed to love him wielded blades that drew no blood. They lifted him up, then carved the flesh from his body. They wanted a radiant, dazzling god, and the warm blood gushing from Yoriichi gave them exactly that.
But after his death, he became the spirit of his own Nichirin Blade and entered into a contract with the Time Government. He changed the name he had borne as a human and severed the bonds he had formed as a human. Yet he still remembered that he had a brother, and still remembered his wish to save him.
"Yoriichi Tsugikuni, a Nichirin Blade. My current wish is to save my brother, who has become a demon, and..."
"I will surely slay every demon under the sun."
The world's will created a child, bestowing upon him extraordinary talent, noble character, and a beautiful appearance.
It was also fiercely protective of him.
What? My darling has no friends? I'll get him some.
What? My darling wants a happy life?
Then a creature called a demon appeared.
What? That Breathing Style? I'll get him a whole cartload.
The world cherished this child and even granted him a measure of divinity.
Then one day, he died.
The world's will: What? Who dares kill my precious darling? I'll kill them!
Oh, right. I forgot my precious darling was human.
Never mind. His soul is still beautiful and clear. Stuff it into a blade and he'll live forever!
Theme: I'm not telling you