Demon King Promoted

Deep in the dark underground temple, the seriously injured warrior who fell to the ground looked at the karma of hell not far away, trembling all over his body. The legendary demon king of hell, Ender, appeared in the scorching flames, holding an ancient parchment with a smile on his face. "I can save your life, young man, but in exchange, you and I need to make a contract. I like your... Soul very much!" "You... You, what do you want it for..." "Of course it is used to become stronger! I need human souls to recruit subordinates with special abilities and hunt for forbidden knowledge. I will use the power of the soul to summon the dragon in the abyss and build an invincible fleet; I will open up trade routes to all directions, and build a great empire brick by brick that the world cannot imagine!" "It sounds... Good to eat... But what benefits can I get?" "You can become my pawn... I mean, the key training target! Soon, you are likely to become the fleet commander who orders thousands of cannons to fire, or the astral mage who stands at the apex of arcane magic and overlooks all living beings; you can become the richest businessman, or you can become a free explorer traveling around the world. Aren't these enough to attract you?" "It seems... Quite touching..." "Then hurry up, young man, just press your fingerprints. There are still a lot of business waiting for me..."