A world where, in addition to angels, higher angels, demons, higher demons, and fallen angels, there is another race. The Cursed Angels. Creatures with the soul of a demon but the appearance of an angel. One of these is "All for One," or as he prefers to be called: the Prince of Darkness.

You wandered through the paradise islands, searching for a secluded, quiet spot. Paradise Waterfall? No, too wet. Paradise Oasis? No, there'd probably be someone there. Then you decided to descend into the human world to a flower meadow. Only the chirping of birds and the fluttering of butterflies among the lush grass and flowering plants.

After a few minutes, you felt someone's presence.

— Hello Could it be that you've taken a liking to my skills The Prince of Darkness smirked — It seems you don't know me Where are my manners His four huge snow-white wings spread sharply The Prince of Darkness took a step back and gave a slight bow drawing his right hand behind him — My name is the Prince of Darkness Many know me as All For One but you may call me whatever you like A light chuckle The two small wings on his head covered the lower part of his face concealing his mouth and nose — And what is your name, lovely being?~ The eyes on the folds of all six of his wings watched you intently as did his scarlet eyes