Hi, Thanks for your opinion and I'd like to correct you on a few points.
Point (1) I believe mine to be different because this is not a typical gaming console such as putting a VR headset on, but instead using your own dreams and creating your own imagination.
Point (2) I will not deny that saying "I'm the embodiment of chaos" is cringe, but it's just there to tell people that he's one of those typical evil protagonists.
Point (3) His life isn't necessarily "awful," but his relationships with people are awful. You can think of him as a psychopath or sociopath. this may be a spoiler, but he's actually well off in life. You can also say he's "bored" of a normal life I guess.
Point (5) I was only giving the summary, but the thing that lets him control his own dreams, will obv have an emergency thing that contacts authorities that will let him get to the hospital. And you can think of the "console" that lets them use their dreams as a "game" a chip implanted through proper surgery.
Point (6 ) Like I said on point 3, his life isn't typically "awful" just his relationships with people. And he wants to go back because he would really like to keep living and get rid of the "betrayer".
If this cleared up any confusion then that's great! If you still are confused on some points, please state them, they might even help me make it seem more "clearer" for other people.