Multiversal Dungeon of the System

[A/N: As the title might suggest, this story will include the Popular Works of our world, all mentioned and/or used worlds that will be used in this Fanfiction, will be listed at the bottom of the Synopsis] Offered a contract after death by the Almighty System, an ex-human named Jack Stalk finds that he has become a Dungeon and must survive and expand his dungeon through the Multiverse and the strange chaotic dimension he finds himself in. What kind of Dungeon will he create? What kind of Dungeon Core will he be? I guess there is only one way to find out. [Games(Not Decided)] [Movies(Not Decided)] [TV Shows/Anime/Novels(Not Decided)]