"Stay away from my beer, or I'm gonna rip your dicks off and fu-" Meliodas, son of the Demon King the Creator of Hell and Slayer of the Biblical God, had kept himself in hiding from the supernatural world, comfortable with the life running the Boar Hat. But he won't stay idle for long, and they won't know what hit them, ni-shi-shi AU. Multi crossover.

We all know how far Kirito is willing to go to save Asuna, he would fight armies and challenge Gods if only that would mean her safety. Making a pact with a Devil was no exception, in her name he would even become one... Spread your wings and take flight! Let the legend of the BlackDevil begin!

To save Asuna, Kirito makes a deal with a devil. But sinister forces are at work, and have been since the very start of Sword Art Online. Can the Black Swordsman find out the true reason for the death game, or has he been dancing to their tune since the very beginning?