Sword Arts Online: Darkness

What if the creator of Sword Arts Online had controlled Kirito and his friends, turning them into evil, and brought the game into the real world, turning it into a giant game world? Well, this is the situation where our ordinary protagonist Roxas Nietes, or Rohasu Nitama as his player name, had found himself.
Being a foreign high school student living in Japan with his friends in a shared house owned by his school would make his life there difficult, but his intelligence on basically anything instead made him prepared and an actionist. He was an ambivert who loved music, art, writing, picture taking, philosophizing, and best of all, making scenarios of all kinds in his mind.
So, the day before SAO was brought into the real world, Roxas had unknowingly received a mysterious-looking email from a player named Anko Tachibana, who was a deceased player. That email is a request for help because he, who knew Kirito and his friends before, wants someone to help them, who are now known as the Elite Players, snap from their state of being brainwashed by the game. Roxas accepted it after some thinking, but there’s one condition: he will be Anko’s vessel because Anko is now a spirit after his death in the game. To be free from Anko’s ghostly possession, he needed to complete the task in any way he could.
Now that he was Anko’s vessel, what would Roxas do to do this big and seemingly impossible mission? Well, he will use his intelligence, ambivert personality, and scenario-making mindset to do it, plus action. That combination sounds ridiculous and unorthodox, but for him, it will be a good one.
So, join him, Anko, and their friends in a now-altered reality fighting monsters and bosses across Aincrad-ridded Japan and getting into the Tower while trying to get Kirito and his friends out of their brainwashed state.
But the dark side of Sword Art Online was slowly revealed as Roxas and his friends went deeper and deeper for their mission through their spirit guardians. One of them was the origins of Eugeo and Alice (This was what if Eugeo and Alice were once humans who were killed and were forced to be bots in the games?)
Warning: This story is dark, and the cover photos for this are NOT mine! Credits go to the original owner!