The greatest weakness of this manga is how slow everything moves. The monthly releases aren't helping either. The characters are spread so thin and the main character is spread thinnest of all without any kind of development except, "I did this back then and this too!" while everyone gets on their knees to kiss the ground he walks on without ever really contributing anything.
There is some kind of faux complex the MC is going through about, "How much does he want to leave?" but its only becoming more and more obvious that he won't leave and he has shown little to no connection to the outside world. He lived, and lives in this game and with the lack of any kind of opinion or even viewing of his life outside that game basically tells us he is is going to stay. The ending wrote itself.