The Correct Way to Play the Game World

Do you think you have traveled through time? Not really. While you're playing a game? In fact, you have traveled through time. Are there so many adventures in traveling through time? Beauty? Is the protagonist really capable of cheating? Can a modern person really adapt to another world so quickly? Like a continent that unfolds like a scroll, what kind of game or world will they experience? (There must be a halo, otherwise how can a novel continue if the male protagonist dies? Unless it is a group drama. But the halo is not a cheat. I think the halo can only protect the character from death.)