Coliseum Online: A Deadly Game

In the year 2137, the game Coliseum Online was launched. Everyone in the world was eager to play it, including Dan, a freshmen on campus. Dan was someone who practiced every killing art known, as he was part of a family filled with profissional assassins.
He was different. He had killed before, but it was not something he wanted for his life, so he abandoned it.
Unfortunately, his life drastically changes after logging into Coliseum Online. The game company promised that people would be able to earn IRL money playing the game, so everyone wanted to play it. Coupled with the fact that it being the first fully immersive VRMMORPG, the game launch was a success.
The bad part was that, everyone was stuck inside of it, unable to log out. Coliseum Online than became a survival game, where people would die IRL if dying inside the game.
Now Dan must use all of the skills he had learned since he was a child and somehow find a way to leave the game, while also avoiding death against the monsters and the players.