Itsuki a 19-year-old high schooler who is poised by his family and lives after ten years and sees a whole other world full of demons that hunt humans. He moves by himself as a demon hunter and then notices something off

Luis was just a lone traveler, he traveled across the lands to find a perfect place to call home. After weeks of walking he almost gave up until he found what could only be a dream.

Daniel is a average high school student who saw a game in a virtual world. After being able to beta test the game he had a reason to live. After him and his group of friends get on this game they are trapped in it and have to beat it to get out. The name of the game sword art online

A group of friends that are drifting apart find out that the world is more different than they originally thought.