Jam has two stories, one if what he was made to be and on is what he really is.

Jam is a genie. But without magic he is forced to grant wishes with hard work. wishing for money just means Jam gets a job and works until you have the money you need. Hes not even that good at the either.

Jam is a being in a world of unfinished characters/stories. You live as long as your story is being told in another world. but the existence itself proves the unfinished ending of itself. one day all beings of this world will cease one by one until they are all gone.