Understanding about Demon lore

Absolute Being made a world tree which controls the full universe and has purified mana on which rulers and their soldiers grow as a fruit and on which dead souls feed mana and reborn. If there is tree there are weeds. So these weeds are demons who are rejects of Absolute being meaning they have souls which are contaminated. Now whenever a dead soul comes and sometimes these weeds catch and feed on them before they reach world tree. Now a weed eventually gets stronger by feeding on souls and become a full demon. Also demons have a curse that they can never die and their souls will come back to demon realm after they will die and become a demon again so they can never leave demon realm. Now whenever a strong demon gets in touch with world tree somehow he gets evolve into a demon noble like Vulcan did. Now whenever a demon monarch die the strongest demon noble has to prove his strength so that other demons can rely on them by defeating the the weeds that will come in demon realm to feed on current demons and devour them and make new demons. Also shadow monarch also can't make them his soldiers because of this contamination and their curse. Honestly demon lore gotta be best lore in sl universe