In the End...At the Beginning( Asuka Ryo | Satan/Fudo Akira)

"If both sides cross swords, there will always be casualties."
"Okay, what do we do then?"
"Love! We use love."
"Is that strong enough?"
...
"Lot's wife looked back to the burning city and became a pillar of salt."
...
By this time, Satan has lived through an innumerable amount of time loops and they have had enough. They couldn't keep watching Akira die; couldn't keep reaching out for victory, feel it against their feathers, only to have it snatched again. They beg for the mercy of death. They're given but one chance, instead.

After all, they are the Father's favorite.
(p/s:author:pft980811
I just borrow this story)