I Made a Contract with a Dying Fire Demon, and I Turned into a Demon King.

[Fighting is fun + no heroine + decisive in killing + demon control + invincible] Online games merge with reality, thousands of races invade, and everyone changes jobs Everyone has the opportunity to change careers, have the opportunity to change their destiny against the will of heaven, and become a strong person who dominates a party. Jiang Ming, who was favored by everyone, changed his profession and became an S-class magician, but he was ridiculed and ridiculed by everyone. Just because the monsters in this world are extremely arrogant and would rather die than make a contract with humans. And monsters don't have any known evolutionary path. In this way, the magician became the most useless profession in the world. Facing everyone's doubts and ridicules, Jiang Ming just smiled. [Ding, congratulations on binding the system! Reward SSS level talent, all demons surrender] All monsters will willingly surrender to you! [Congratulations on obtaining the S-level skill Eye of Hell! You have the ability to see through the evolution path of monsters! Facing the dying little fire demon, Jiang Ming relied on his ability to evolve him again and again. [Congratulations on your contract with the dying little fire demon] [Little Fire Demon → Fire Demon → Sky Fire Troll → Purgatory Burning World Demon King! In the end, a dying little fire demon was cultivated by Jiang Ming into a demon king capable of destroying the world. … A few years later, all races launched a devastating attack on humans The strongest human beings have no choice but to accept death When mankind fell into despair, Jiang Ming's figure appeared in the sky... Behind Jiang Ming, several figures with a height of 10,000 meters stood majestically. One of them is the little fire demon who almost died many years ago! Everyone was shocked: Who said that the magic master is a useless profession? Behind Jiang Ming are all demon kings!