Crossover Anime: Offering Myself as a Sacrifice to the Sword? I Choose to Be the Great Demon King

Mo Li was summoned to another world by the goddess, hoping to become a hero and save the world.
But little did he know that he was just a follower cheering on the hero.
What was even more unexpected was that, in order to obtain the holy sword to slay the demon king, the hero actually chose to make Mo Li the material for forging the sword.
Faced with the sword-forging furnace right in front of him, Mo Li declared: Whoever wants to jump can jump!
Since you are so heartless, then I will become the Demon King and defeat the hero.
My beloved family, come out and meet the hero!
Black Saber: "Master, my sword is with you, and your fate is intertwined with mine!"
Esdeath: "Everything in the world will freeze before me."
Kurumi Tokisaki: "Oh my, since you say so, darling, may I ask you to?"
Accelerator: "You lowlife, sorry, but this is Accelerator!"