Who Was Toying with the Demon Gods?

"Who has answered the ancient call?" "Who dares... Ah~~~~ this breath—it is the mortal world, souls, flesh, pure energy!" "The scent of pure energy." "Ah~~~~ strong, beautiful flesh and blood!" "Open it wider, make the spatial rift wider! I can hardly wait to devour everything!" "Hahaha... Let me grant life eternity and make them servants who shall serve me forever!" "This scent!!!!" "It is the unique scent of gods!" "A feast beyond compare—I can hardly wait." "Have the gods reached their end? Who opened the Demon Gods' gate?