Su Yumian is a 22-year-old freshly graduated college student and a full-time author of online novels. She has a physique that will lead to unlimited streaming of copies when she falls asleep.
Sleeping in reality = traveling through the dungeon, waking up = leaving the dungeon. She is not bound by the rules of the dungeon, and has no protection from the rules. Ghosts cannot kill her, and player rules and props have no effect on her.
Even if she dreams too much, she can quickly wake up and realize that she is dreaming.
To her, all this is just a collection of materials. To others, she is an "outsider" who is outside all copies, comes and goes without a trace, is immortal, and is mysterious.
